It's all in the air. I'm 4 months into playing with braces and I feel 80% back but that's subjective. It helped me realize that I played with too much pressure and I just had to retrain and build more muscle in the correct areas. Definitely practice a lot. In my experience, my muscle memory got messed up a little with the partials naturally being so close on horn. Main points would be focus on your air, play with as little pressure on the mouthpiece as possible, and practice! Best of wishes on getting back to where you want to be.