If you're already in the fediverse then you already probably have an idea of which sites there are. So personally I'd keep a few instances handy in mind so I can bring one up and at least "distribute the load" so to speak.
Some people start feeling attraction at a very young age. It may not be sexual but the attraction is there. I'm a straight man and I've literally found girls to be beautiful for as long as I can remember.
Can you relax? Having your beliefs is one thing, but equating gay people to thieves and murderers is another. Most people from the time they are born have had their sexual attractions set in stone. Most men are attracted to women and vice versa. It is literally the same way for gay people.
Everything except 2 and 6, because of the handles.