What's the best way to deal with constant overthinking?

Hey there!

Our brains are definitely difficult beasts to overcome at times, and I hate that you are struggling, but I'm so glad that you reached out for advice! 

When it comes to our brains, it's hard to slow it down at times, but it helps to take a look at what our "wind down time" looks like if it's more prominent and problematic at night.  There are a lot of tips that may help with that .... 

Stop using electronics (phones, laptop, computer, tablets, gaming systems, sometimes tv) an hour or so before bedtime - it really does keep our brains stimulated and active, versus quieting it down. 

Try to cut back on caffeine several hours before bed

Journal the things that are stuck in your mind --- are there things that you can address in the moment versus things you can't do anything about right away?  Separate those into different lists just to get them out of your mind. 

What are things that you can control versus what you can't.  While it's not always easy, and it takes practice - try to sit with the feelings for a moment, and accept them, then think about letting those things go, out of your mind.  Some times writing things down and throwing away those things we can't change help to visualize and get them out of our minds. 

Sometimes we need to look at what is most prominently going on in our minds.  What is it that we are actually thinking about, and can we do anything about it?  Is it something as simple as "did I lock the door", or is it something more trivial like "I don't understand why people don't like me"? By kind of figuring out what those thoughts are, we can start to look at how to break them down and stop that cycle.  

If it's something simple like checking the door, we can solve that by checking.  When it comes to internalizing things and trying to figure out more trivial things --- I think we come to some Cognitive Behavioral Interventions that may help that spiral.  Why am I questioning this?  What's the evidence that i'm making the right/wrong decision?  What is the worst case, best case and most realistic outcome of this?  

Most of all --- giving ourselves credit and recognizing that we aren't perfect.  Sometimes we have to learn to trust ourselves, and focus on taking things one at a time.  Using mindfulness practices allow us to focus on one thought at a time, rather than many thoughts a bit at a time all at once.  Here is a link that may help you to get started: https://www.youtube.com/watch?v=7-1Y6IbAxdM

I hope this is helpful!