Ok, here's the deal. I always practice in the evenings; between when I get off work and when I put my kids to bed. My lips and chops almost always feel good, and it takes little effort to play. The problem is Sunday morning at church. I feel like I go back several years in my proficiency. My chops play out too soon and my lips just don't want to cooperate. It really takes a lot of work just to keep my tone. What's up with me? Is it psychological or physical? I've even tried brushing my lips when I brush my teeth in case there is some kind of film from sleeping. HELP!!!