Hello, I'm a high school marching band member, and I was wondering if anyone had any professional advice on playing. I have learned all basic fingerings on both octave 1 and 2 (all sharps and flats included). I've been inspired by other trumpet players for a long time. I've been pusing myself to play at least 4 hours a week, taking several breaks. As I kept going throughout my months, it was a challenge to play on the second octave for a long time. But I've been practicing so much everyday in the past, I just can't leave the trumpet alone. Now that I'm in high school, I'm just not sure that I'm using the best techniques. My usual routine is lip sluring. Are there better methods of developing lip muscle? What other exercises am I leaving out?