Basically I will fall asleep but its only for 3 / 4 hours and i feel like a hyper active toddler, i just can't get my brain to rest and shut down.. I can't relax

I can't even try to identify what the problem is obviously people always say what is causing all of this but sure if i knew myself what was causing it, id try to solve it. The truth is I don't know. The problem is that its affecting my life, my social life, my routine because I feel so tired and lethargic all through the day and i don't want to work out or go out.

I am absolutely sick of it. You would think that my body will Just want to rest but it never changes, every day is the same story.