Thank you for all your advice! I already have a music major college student as my teacher. I've been taking lessons from him ever since he was a junior in high school. (I was in middle school back then) Unfortunately, he does not come back that often since he goes to a college a bit far away. So I can only take lessons when he comes back for a holiday, Santa Clara Vanguard camp, or something. On average twice a month. I'm planning to get a different teacher for the summer, since he's gone for drum corp.