Start with a drum. Bang out a rhythm. Be unbothered by being a bit off offbeat
First - instruments are unaffordable as well, a school would at least lend one to you. Second - you won’t be taught good technique like that. I don’t even know notes!
For sure. You gotta save up for them. I’m recommending nabbing something second hand and originally crappy. Whatever the drum equivalent of an Eart guitar is. And then, because its a drum, you don’t have to worry about notes. Just bang something out. And don’t worry about technique. I’ve watched enough professional musicians use bad technique through the years to say with confidence to not let that stop you. I realized earlier I’m basically advocating rewilding music. Cannot emphasize enough that I really mean it when I say I recommend embracing being bad. Don’t self edit. And if all this is too much, write clumsy poetry. Just make some art at home. Draw with sidewalk chalk on your streets. Sing badly while you go for a walk. Whistle, poorly. Whatever it is for you. But a really radical thing we can do as a form of protest is to make our own local media apparatuses