I am where you are at basically. All over the place with mood and not getting sleep.
The absolute biggest key to this whole illness in my opinion is routine and sleep. 8-9 hours of sleep each night to be exact. I'm not strong enough to be exact on my diet, but I do try my best.
I hope you can get some sleep. It really goes a long way.
There was a post awhile back from me and you were kind in your support of my Mom going through stage IV cancer; didn't get around to replying, so thank you.