I should clarify on the whole "Anyone in church says it's a sin" thing.
I didn't mean any Catholic who goes to Church becomes all vicious or afraid of LGBT people. 
A lot of them in my area would probably still treat you and respect you as a person if you were LGBT and still wouldn't judge you too often.
But they would all hold firm in that it is a sin, and even if they still like you regardless, that your sexuality is wrong.