Hey! You're so manic dude.

and you REALized it! That's awesome. If staying in here helps you. Just STAY! When I'm having a thing I have this open on my phone and seriously am on the whole day. Whatever it takes right. I second the suggestion to tell the people closest to you that you are feeling this way. I immediately text two close friends and tell them if I have an inkling and it totally takes the fun right of of it. Like "hey Im spending a **** ton of money at the mall right now. " and then I sorta feel deflated. Or "I just bought a bottle of wine and I'm sitting in my car in my driveway drinking". Telling them makes me feel like I need to stop. Also telling my husband which i HATE. Just because it's like embarrassing or something.
I know any advice or suggestions are very personal and individual so I can only say what works for me and you can take it or leave it.
One thing I try to do sometimes when I am feeling manic is to do what someone once advised me and "act opposite the urge". Now this is difficult to the point of painful. But if I feel like playing music REALLY REALLY LOUD. I will make myself sit in silence or play something quiet and boring. If I feel like going out I make myself stay in. If I feel like sending long rambly text messages I force myself to put the phone down. If I feel like skipping meals all day I force myself to eat something. Etc. Most of the time it is about being still and quiet rather than active and loud. Like NO exercise or dancing around or cleaning like a maniac.(in some cases exercise can help tho. See so complex). But anyway. As I said sometimes I repeat SOMETIMES this helps at least not fuel it more. Cuz I admit I love mania (parts of it) and I love to indulge it. But....yeah. you know. You all know.