Uh where are you supposed to sing ?

I live in an apartment and used to do vocals and I’m trying to pick it up again but it was always a hassle even back when I lived at home. It’s akward to do it in front of family, so loud, car sucks. I just don’t know where I’m supposed to go or do to sing in an apartment or anything that’s free. If you have any tips that you do that’d be appreciated because I can’t think of anywhere to go or do that closes off noise or doesnt bother people.