New here so forgive me if this is in the wrong section, but i believe this is the correct one... Anyways I've been playing the trumpet for about 8 years and now i'm in a colegiate band as well. I've always had a pretty good range and stamina but lately it seems I can only play well for a shorter amount of time before my lips get really tired and my range just dies. I still practice pretty regularly although not every day (it is summer afterall :) and I've tried everything from different lip slurs to playing exercises recommened by other trumpet players in my Arbans but nothing seems to help. Any ideas? Thanks.