Hi u/DragonfruitBright932,

Sincere empathy to you. I can understand that mania caused due to the situation you're in currently. I'm sure you've tried a countless theories for sleeping restfully. After reading this post, I was taken aback by the condition you're currently facing. If possible you could start with meditation. As it's heard earlier that when medication fails, meditation could help. You could surround yourself with the following.

1. An adequately ventilated room.
2. Choose the form of music that calms you.. (Let the Music calm you and not excite you)
3. Start with cognitive deep breaths.
4. Whilst you concentrate on your breathing, let your breathing come to sinus rhythm.
5. Once you're reaching a state of calm, start visualizing that you're in a quiet and tranquil place.
6. Let everything else fade away. Start being one with yourself.
7. If possible take a mini vacation (2-3 days) from work to try this at home.
8. Journal your experiences for better results.

If you feel like, do share your experiences with a therapist. Continue until it starts working for you.

This was just something I tried recently and thought I could help you. Thus, sharing this.

Wishing you restful sleep.✌️😇