I've been playing my trumpet for a while now and I am planning on going to college and majoring in Preformance. Latley though, for like the last year or two my endurance is at an all time low even though I practice regularly, and it really is not getting any better. It is really doing a number on my confidance and self-esteem. This is because other people that i play with seem to have the ability to play longer without as much tension as me. Also Im pretty freaked out because I am going to have to start applying and auditioning to colleges soon, and my endurance hasn't gotten much better and I don't want this little hiccup Im having to affect my future college plans or even future career plans. And im pretty freaked out because i may not even have enough endurance to get through my audition piece just like everytime i practice it. I have talked it over with my private lesson teacher, but I was wondering if anyone else has had these problems and how you got over them.