Why can’t I wake up?

I’ve tried to find answers online but they don’t help.

High school: Very stressful home life I go to sleep at 12 am, sometimes later I wake up at 6 am I go about my day and although I’m sleepy at first, I kind of get a little better Extreme mental issues (honestly they get really worse with a lack of sleep, I’ve learned)

College: I go to sleep at around 10-11 pm I wake up at 9 am I’m not stressed in the slightest My mental issues are under control (90%) I can’t get up for the life of me. My class is at 10 and every morning I am almost late, if not actually late because i spend 30 minutes trying to get up.

Also: I don’t party, I don’t socialize or stay up talking to people. I use my phone sometimes before bed but honestly rarely, I sometimes go to sleep as early as 8 pm. I sleep for like half the day on weekends Under minimal stress and I mean it!! I eat enough per day. Still sleepy throughout the day Don’t have any medical conditions or history of that

What’s going on?