I've done just about every wrong thing that a trumpet player can do. I stretched for high notes. I didn't warmup. I injured my lip, almost quit, labored on multiple embouchure setups, looked to mouthpieces and equipment for answers. Tried a rolled-out embouchure, rolled-in, puckered, high placement, low placement, side placements, excessive aperture control. It was a sad laboratory of trial-and-error experiments and I was the rat.
But in the process I learned what it takes to play the instrument easily and effectively. I know how hard it can be. But I also know how easy it can be.
I welcome students of all ages. The only requirement is a genuine hunger to learn and improve.