> Doing it badly is doing the thing. No it's not. Sometimes (or maybe most of the time) doing it badly means maybe it's not your thing. I used to have a neighbour who liked to play the piano and sing. He was doing it consistently badly and he didn't have anyone to tell him that he should probably stop trying.
Doing the thing isn't about judging other people. That doesn't contribute to your thing.
If someone is bothering you, making it hard to do your thing, then your thing involves talking to them about your problem. Without judging what they are doing.