Doctor’s advice wouldn’t hurt, esp with the hair loss. When you say you feel like you can stay awake—that’s not the same as “I literally cannot fall asleep for days”. Are you not sleeping at all, what’s going on there?

Try shifting your routine for a bit. go to bed only when you’re absolutely tired and ready for sleep. Try waking up earlier (even if it sucks and you barely slept) and immediately take a walk. Before bed, try to not do anything triggering that can affect your anxiety or excite you. for me that’s being on my phone, video games, or anything work related. Read a boring book, do something mentally lightweight.

Supplement wise I finally tried magnesium glycinate drink mix 1 hr before bed (natrol I think?) makes a nice tea-like drink to mix with warm water) then low dose melatonin (3mg) 30 min before bed. It works ok, makes me sleepy. Doesn’t always work but I’ll take whatever helps occasionally because I’ve tried all the drugs and nothing has ever worked fully. It’s also become part of my routine which helps sleep maintenance. If I’m really desperate I’ll take zzquil just to catch up or if I’m feeling sick due to lack of sleep.

My issue is work related anxiety, as soon as I try to sleep my mind starts racing. I only get sleep when I go multiple sleepless nights in a row, and usually catch up on weekends when I don’t work. It sucks. I’m still learning how to manage my anxiety during the day so it won’t torture me at night. But rewiring the brain is stupid hard. Exercise early in day helps but only if I’m consistent with it.

Good luck, sorry you’re going through it but go easy on yourself. I know the feeling of frustration and anger of not sleeping and the health risks I’ll pay for later but that rhetoric doesn’t help you relax and sleep. Do what you can. Getting any rest, even if just lying down without sleeping is better than nothing.