I'm curious - over your playing careers, what have been the consistent problems you've had with playing trumpet that have dogged you the most? How did you overcome these problems?
For me, I think the top 3, in no order are:
-Tension, especially in the throat, while I play
-Playing the absolute quietest that I can (tone quality goes straight out the window, everything goes fuzzy)
I think I pretty much killed my endurance problems by focusing on letting the air do the work for me and backing right off on pressure. The first two are still very much works in progress.
What are/have your "demons" (been)?