Managing mania?

About 3 or 4 times a year I will get pretty powerful manic episodes. Usually for a few days I'll stay at the office until late at night, I'm in an amazing mood, I'm always excited and have trouble sleeping. My focus is so powerful, If I could be this version of me all of the time I genuinely believe I could do anything.

It's like a totally different person from my usual self who is easily fatigued, slow to start, and generally lethargic.

Knowing this side of me exists is exciting but also kind of depressing given my awareness of its fleeting nature. How have you dealt with this? Any reading you could recomend?