How can I stand my sister?

Ok, this post isn't about how much I don't get on with my sister (hannah) it's how much I get on with her, but I don't see how I can. The differences between me and Hannah: Hannah loves pop music I hate pop music, she hates most rock music I love rock music, she plays football and is about to go to university studying sport and I couldn't be less interested in sport I'm in bottom set because when we play football I just pretend to be a turtle in the bib, I love art she can draw but she sticks to drawing a flag so not that artistic. I really don't understand how we don't hate each other because if you know me you know what I'm like with my music I get really protective and refuse to listen to pop music.