It's already tough enough, so no sense making it harder for yourself and others.
If people aren't worth your time being kind to them, then don't waste your time being unkind to them.
Enjoy something you enjoy whenever you've a moment to enjoy it.
Sometimes (or often) you might have to make that moment.
Remember you have just as much right to be here, and doing what you please, as anyone else.
Ignore those who tell you otherwise.*