Been through five separate severe manic episodes and the best thing I've done is go back and find the people that care about me regardless of what happened or the weird stuff I've said and/or done. Everyone else I kinda cast off not worth trying to explain myself to them but I know it's hard if they were close to you, if that's what you're facing, hard to lose some of the relationships I've had with people.

but oh well life is too short to worry about what others think about you (me, if this doesn't apply to you) but that's been the hardest part for me, thinking about what others are thinking, which seems to prolong my recovery.
Anyways sorry if I strayed from your question I highly recommend the outdoors with a good book, Journal, camera, sketch book, bring a friend maybe or go alone bring you best friend the dog if you have. Go for a drive and sit by a lake or river watch the water go by bring a fishing pole if you like doing that. Hike, look for cool rocks, plants, animals bring a nature field guide and geek out and identify stuff. May sound dumb or what lots of people say but it can really work. Leave your phone if you can just don't get lost lol. My phone has been my enemy pre, during, and after on many occasions. Something to be said for the poison of screens. All the time at least just saying.
If you're not the outdoors type or don't have access to these thongs, live in a fairly populated area, go to the mall or something get a soft pretzel and walk around just check stuff out got to a library things like that have helped me in the past.
Could always get a kitten if you like or have always wanted a cat. Talk about taking your mind off stuff there's a little fuzz ball rubbing against your leg and sitting on you that wants your attention and pretty much will always love having you around. No. Matter. What.
If none of these things sound like fun or are doable, facing depression and don't have the will to get going seek professional help get around people that care about you make them drive you to the mall or the river
Thanks for writing this I'm not having the best day today came on here hoping to write something to free my mind up hope this can help a little. Oh yea helping other people or trying to can help yourself sometimes, takes your mind off what you have going on
Good luck time fixes most everything just be patient and don't beat yourself up sorry for the long reply.