Assalamu Alaikum - Struggling to Get Back into Studying

Assalamu Alaikum, I wanted to share what I’m going through and maybe get some advice. A little about me: - I haven’t been actively studying for quite a while because of some personal problems - I used to struggle with depression but I’m not in that state now. - I’m a university student majoring in Informatics Engineering (IT). - My program is fully self-study, so there are no in-person classes. I learn from home using an online platform where I read materials and submit assignments. - Lately I’ve lost motivation to study completely. - The university provides physical course modules and e-book versions on the learning site. - I have a bad habit of staying up late - usually sleeping around 2 a.m. - which has given me dark circles under my eyes. Right now I mainly use my laptop, course modules, and a countdown timer to try to manage my time, although I haven’t really started using the timer properly. I also have a strange issue - sometimes I suddenly feel overwhelmingly sleepy at random times, even if I slept enough the night before. It’s so strong I can barely resist and sometimes I just fall asleep. I’ve had a CT scan as an initial check, but my medical tests aren’t finished yet since there are more follow-ups to do beyond the CT scan. How can I make sure I’m actually studying? How do I break this laziness for good and get back on track? JazakAllahu Khair for any tips or reminders. I’d appreciate simple, practical suggestions that fit a Muslim student’s routine.