if you can't sleep, try exercise. If you are taking any anti psychotic medication, clearly you are on the WRONG track. Maybe you should work out whatever it is in your mind that causes you to behave so ineffectively. You can't really be a great trader until you have you mind working for itself, not against itself.
If you position trade and can't sleep because of your overnights, then don't hold stuff overnight.
I hold no overnight positions yet returned over 500% this year. Yes, daytrading. Yes with leverage. So what.
Guess what, Monday is a new trading day. Once i record my trades after the bell rings (or if i close them earlier in the day, which consists of copy and paste export the blotter to excel, and my order status page...takes 2 minutes) I FORGET the day. I move on to working, out, playing tennis, and really enjoying life.
You NEED to trim your trading down to a level where you can sleep at night. Pills and potions will only mask the weaknesses in your trading. You will eventually realize this or your account equity will drop to the point of where you will get what you need: to stop trading as you are and modify it to fit a healthy lifestyle.