I haven't been able to sleep for more than 5h for months

I just don't really know what to do anymore, I am 24M.

I normally go to bed at around 00:30~ and I end up waking up at around 06:00 even tho I don't really need to start working until 08:00

If I go to bed later, I still wake up at around the same time. If I go to bed earlier, I either can't fall asleep until the time I normally go to sleep, or I wake up even earlier

I just don't really know how to fix this, I started taking some magnesium tablets before sleep out of recommendation some months ago and hasn't really done much. A couple of days ago I bought some anti blue light glasses since I spend most of my day looking at computer screens because of work and it is bad for sleep, and I haven't noticed anything at all

Any ideas/opinions?