I got my braces off about 2 months ago, which completely changed the shape of my mouth, and with it my embouchure. At first, I had brilliant range (for me), great tone, and few struggles with control. However, about a week post-braces, I lost all control (trying to play low C and resulting in top-space E, for example), my range became shot to the point that a G sitting on the top line became a "PFFT" of air, and my tone became wobbly and fuzzy. I haven't figured out how to get it back yet. I can play higher range, but only for a few notes, then it's gone. The control has improved slightly, having relearned the shape a little. Honestly, I used to LOVE playing. I looked forward to my practice everyday and didn't want to stop until I had reached the end of my endurance. Orchestra rehearsal was the highlight of my week. Now, I go into practice with dread, finish with almost tearful frustration, and want to quit after barely half my normal time. Rehearsal is a struggle, and I feel like I'm being humiliated by the other players I used to be on level with and that I'm ruining their playing with my own. Of course my frustration is probably exaggerating that, but I'm at the end of my wits. Any tips at all?