Literally it's getting to a point where my life is affected. I'm missing classes and unable to focus.
I go to bed at 9 because i want to be asleep by 10 at latest because i have to wake up at 5:30 to get to my 8am classes. But i just cant fall asleep. I keep turning and tossing because i feel fully overenergized. It's really affecting my life because even though i turn energetic at night, i feel very lethargic and tired during the day as a result of lack of sleep. I think also my body is getting affected. It doesn't help that i have very bad psychological nightmares (not anything gore-y or scary, not sleep paralysis or demons, just truly disturbing like being kidnapped and trafficked, being embarrassed in front of a crowd, being ridiculed and left by my friends, my family dying and me being the only one to survive, etc...) nearly everytime i fall asleep, so even when i manage to fall sleep i will either wake up in the middle of my sleep or i wake up extremely disturbed.
I do not consume any caffeinated drinks/soda, no alcohol, no medication. I take some supplements like folic acid, omega 3, creatine daily, and iron + d3 occasionally.
I exercise daily, i walk everywhere, i do 1.5hours gym sessions 3-4x a week, i'm doing a demanding major (mechanical engineering) so i use my brain and study a lot, i avoid screens 1 hr before my sleep, i tried consistently taking melatonin multiple times, i even tried reading books with a dim light to get my eyes tired, but nothing helps. No matter how tired i feel during the day i just switch to wide awake the moment i'm supposed to sleep.
One thing that may be an issue, i have an extremely bright 3-bulb fixture white LED light in my room. (Darkness makes my depression 1000x worse, i need constant brightness or else i literally cannot function during the day). I started turning my lights off 2 hours before i go to sleep, and i'm saving up for some red light lamps in hopes that those may help.
What is there to do? I need to change this asap. I cannot fail any classes or else i will lose my scholarship.