Hello... hope you are feeling better... you could try meditation and mindfullness when u cant sleep. Try the youtube channel the honest guys. They are wonderful. I do EFT too. But i know sometimes its hard. Sometimes nothing seems to work.

Yes been there too many a times. I don't know how but I can always manage to go through my work week with not enough to no sleep. I have gone for days without sleep and yet feeling like I slept like a baby every night. PTSD with DID I guess not sure what it's. It's like a second wheel somewhere or more. Suggestions would be journal or draw if you prefer. Stay away from tv at night. Work out if you like doing that. Do something fun like play games or word games that does relax my mind and body. No guarantees that things would work but it's worth a try. All the best.

I learned to call it overthinking, I know someone who calls it chuntering (quite like that word.)

Tell mum you are having this. Most people have experienced it and a lot of the more practical types will just take a sleep aid and knock it on the head. Otherwise you just have a sleepless night and you're a mess the next day.

Talk to mum. Or if she is not interested, talk to your doctor next time you are there. Just explain the overthinking till 4am phenomenon. Gosh, we all know it. Happens to most people I think, sometime or other. :)

oh and take a book to bed. paper book, not kindle. Reading off a kindle does things to your brain, and the blue light from screens can keep you awake. Actual paper books will help your brain wind down and relax.

Having a good fantasy novel or something can send you to another space at bedtime and means you can lie down, dozy, and just dream about the happenings in the book (ie, distraction. :D)

I wake up a 3 am and can't fall back to sleep. I try all the meditation tricks etc. and they don't always work. Let me know what you do to stop the thoughts running wild.