If possible, feed yourself, and get extra rest, to support the exertion, and wear yourself out, completely, repeatedly -- preferably, without any judgmental onlookers.
I find that making something from scratch (it can be the very next thing you break, wear-out, or use-up) is also a good way to learn physical coordination.
Old hobby books have stuff like this -- really physical, demanding pastimes, that poor people can do.
You will get exasperated and give up, many times, before you get good at anything, but become confident in the long run.
If you get thirsty and have to drink, or can't walk any more, and have to sit, there is a measure of objective morality in that, which supersedes all the big talkers and popularity contests.
Do an oddjob to support your hobby. People will hate you for it, and you won't mind.
Special interests run from the mundane to the bizarre, and, when you're in that headspace, I think you will like yourself.