I can never find a book that interests me?

Hmmm....you could try reading books like Eragon, Harry Potter, preeps (scott westerfeild almost always writes sci-fi/fantasy), Boneshaker, artemis fowl... Sorry if you've already read these ones. But I understand what your saying about all the books for girls, but the young adult market is quite popular now. I would suggest using a website like amazon or other people who like similar books to find ones you might like.