You’ve gotten some good advice. The part I think you should focus on is that it might not be up to you. You can have this talk with the head coach and tell him what your issues are, but at the end of the conversation you should say “but I want to help the team out however you see fit”.
I hate to say it but we had a junior this year who was sure he knew where he should play. Coach didn’t like his attitude and offered him JV. The kid quit, kind of proving the coaches thoughts about the kid were right.