what should i do about this boy i like ?

I have had a crush for about 7 years, on this boy who i have known my whole life. I don't know what to do, because i wouldn't want to ruin our friendship, and make it awkward between us in the future. Plus not only am i friends with him, but his family. If my parents found out they wouldn't let me see him too often because he's naughty and not good for me. There's a chance that he might like me because his parents and siblings tease him about it. I just don't know what to do?