I don’t like my family hearing me play my flute. This makes it extremely hard to practice. How do I stop worrying about them listening?
There is no method of making yourself not worry other than thinking about it differently. So think about it differently, and you won't be as worried.
Practice when they're not there, or just pretend they're not there.
Easy. Simply shove lots of cotton wool down your fluteholes. Then do the same to your flute. Meh. Did you see what I did, there? Seriously, though, perhaps you should do the opposite, i.e. *remove* the cotton wool from inside your head. Hope this helped.