When I was 16 I was physically very strong. I was into sports too. I played first trumpet in a marching band. We had about 110 musicians in the band. I took lessons and really struggled. I was learning Arban and Clark and both were too hard for me. My teacher pushed with music that was over my head. I played a lot but almost never practiced. I could hit the high notes in jazz band but couldn't read the part. This isn't in your question, just to give you something to look forward to. I have a student and I lend him music. Things that have 4 or 5 dates on the page because I had to do it over again, he gets in 1 week. I started to be able to read music in college. Not well, still really playing by ear. I didn't really learn to read until I started to practice about 15 years ago.