Do you ever wish you could just switch your brain off?
You replay conversations in your head, analyse something you said hours ago, worry about what might happen tomorrow, or find yourself imagining every possible outcome of a situation.
You might even tell yourself:
“I need to stop thinking about it.”
But the more you try not to think about something, the more it seems to occupy your mind.
Overthinking can be exhausting. It can affect your sleep, concentration, relationships, confidence and ability to enjoy the present moment. And while some thinking can be helpful, overthinking often leaves you feeling more anxious rather than giving you the answers you’re looking for.
So, why do we overthink so much?
1. Your brain is trying to protect you
One of the reasons we overthink is because your brain is designed to look for potential problems.
If something feels uncertain or threatening, your mind may start running through different possibilities:
What if something goes wrong?
What if I’ve upset them?
What if I make the wrong decision?
What if something happens that I haven’t thought about?
Your brain may believe that if you think about something enough, you’ll eventually find a way to prevent something bad from happening.
The problem is that there isn’t always an answer.
You can think through every possible scenario and still not know what will happen. This can create a cycle where you keep analysing because your brain is looking for certainty that simply isn’t available.
2. You struggle with uncertainty
Some people find uncertainty particularly difficult.
You might feel much more comfortable when you know what’s happening, what someone is thinking, what the outcome will be or what you’re going to do next.
When you don’t have that information, your mind may try to fill in the gaps.
Unfortunately, anxiety often fills those gaps with “what if?”
What if they don’t like me?
What if I fail?
What if something goes wrong?
What if I can’t cope?
Learning to tolerate uncertainty can be an important part of managing anxiety and overthinking. It isn’t about becoming comfortable with everything being unknown. It’s about learning that you can cope without having every answer in advance.
3. You’re trying to avoid making a mistake
Overthinking can sometimes be linked to perfectionism.
You might spend ages deciding what message to send, checking your work repeatedly or worrying about whether you’ve made the “right” decision.
You may feel that if you think something through carefully enough, you can avoid making mistakes.
But perfection isn’t possible.
Sometimes the search for the perfect decision actually makes it harder to make any decision at all.
You can become stuck analysing rather than acting.
4. You replay conversations because you’re worried about what people think
“Why did I say that?”
“Did I sound stupid?”
“Why did they look at me like that?”
“Should I have said something different?”
If you regularly replay conversations after they’ve happened, you may be experiencing a form of anxious rumination.
You might be trying to work out whether you’ve done something wrong or whether someone has judged you negatively.
The difficulty is that you don’t actually have access to someone else’s thoughts.
Your brain can analyse the conversation a hundred times, but it still can’t know exactly what the other person was thinking.
And the more you analyse, the more significant the conversation can begin to feel.
5. You’re looking for reassurance
When we’re anxious, reassurance can provide a temporary sense of relief.
You might ask someone:
“Do you think they’re annoyed with me?”
or repeatedly search online for information about something you’re worried about.
For a short time, you feel better.
But if the worry returns, you may seek reassurance again.
Over time, this can create a cycle:
Worry → reassurance → temporary relief → worry returns → more reassurance
Part of breaking the cycle can involve learning to respond to uncertainty without constantly needing reassurance.
6. You’re exhausted or overwhelmed
Sometimes overthinking isn’t about one particular problem.
Your mind may simply be overloaded.
Work, relationships, family responsibilities, finances, health, future plans and everyday decisions can all take up mental space.
When you’re already overwhelmed, even relatively small problems can feel much bigger.
You may find yourself lying awake at night because it’s the first time all day you’ve had any quiet — and suddenly everything you’ve been holding in comes rushing into your head.
This is one reason anxiety and overthinking can feel particularly intense at night.
7. Overthinking has become a habit
Perhaps the most frustrating thing about overthinking is that it can become automatic.
You don’t necessarily choose to start analysing something. Your brain simply goes there.
One thought leads to another:
“What if…”
then another:
“But what if…”
then another:
“Maybe I should…”
Before you know it, you’ve spent an hour inside your own head.
The good news is that automatic doesn’t mean permanent.
With the right support and practice, you can learn to recognise these patterns earlier and respond to them differently.
So, how can you stop overthinking?
The goal isn’t necessarily to stop having thoughts.
Everyone thinks. And trying to completely empty your mind can actually make you more focused on the thoughts you’re trying to get rid of.
Instead, therapy can help you develop a different relationship with your thoughts.
This might involve learning to:
- Recognise unhelpful thinking patterns
- Challenge anxious or unrealistic thoughts
- Separate thoughts from facts
- Reduce reassurance-seeking
- Become more comfortable with uncertainty
- Stop getting caught up in “what if?” thinking
- Focus your attention on the present
- Develop healthier ways of responding to anxiety
- Understand what may be driving your overthinking in the first place
How can CBT help with overthinking?
Cognitive Behavioural Therapy (CBT) can be particularly helpful when overthinking is connected to anxiety.
CBT looks at the relationship between your thoughts, feelings, physical sensations and behaviours.
For example:
Something happens
↓
“I’ve probably done something wrong.”
↓
You feel anxious
↓
You replay the situation
↓
You seek reassurance
↓
You feel better temporarily
↓
The worry returns
CBT can help you understand this cycle and begin changing the patterns that keep the anxiety going.
The aim isn’t to tell yourself that everything will always be fine.
It’s about developing more balanced ways of thinking and learning that you can cope even when you don’t know exactly what will happen.
When does overthinking become a problem?
Everyone overthinks occasionally.
It becomes more concerning when it starts interfering with your everyday life.
You might notice that:
- You struggle to switch off at night
- You’re constantly worrying about the future
- You replay conversations repeatedly
- You find it difficult to make decisions
- You need frequent reassurance
- You avoid situations because you’re worried about what might happen
- You’re constantly analysing how other people perceive you
- Your thoughts are affecting your sleep
- You’re finding it difficult to concentrate
- You feel mentally exhausted
If this sounds familiar, you don’t have to simply accept that “I’m just an overthinker.”
There may be patterns behind your thinking that can be understood and changed.
You don’t have to figure it all out on your own
If your mind feels like it never switches off, therapy can give you the opportunity to step back from the constant noise and understand what’s happening underneath it.
At Minds Matter Therapy, I offer integrative therapy and CBT for adults experiencing anxiety, overthinking, stress, low mood and emotional overwhelm.
Therapy isn’t about telling you to “just stop worrying.” It’s about understanding why your mind responds in the way it does and developing practical ways to manage those patterns.
You don’t need to know exactly what’s wrong before you get in touch.
If overthinking is affecting your sleep, relationships, confidence or everyday life, you can arrange an initial conversation to talk through what’s been happening and see whether therapy could be helpful for you.
