I found a 3 minute Blog here on PsychCentral.
Not sure how useful it will be, as one of the things you've indicated is your disrupted sleep.
And honestly? When I'm where you're at I can't "get 8/10 hours sleep per night" - so yeah, I guess it's a case of read through and see if there might be anything you can take away from this blog.
Not sure.
See what you make of it.
Strategies for Reducing Signs of Mania in Bipolar Disorder | World of Psychology