Took Lessons 10 Years

But I have been playing for 11 going on 12.

Playing piano is an outlet for me. My older sister used to give me crap (in a bad kind of way) about how whenever I am mad I'll go to the piano and just start banging out a song till I feel better.

So doing that calms me down, what's her point? Isn't it better than going up to her and punching her or kicking her?

I think so.