Even as adults... Maybe even especially as adults gossip does hurt. Once said, you can't take your words back. People can forgive, but they probably won't forget. It will have an impact on your relationship forever.
Music. It is something you have always loved and keeps you going. It is what you have been called to... it is what gives you magnificent peace and magnificent joy all at once because you know that it comes from the MAGNIFICENT ONE. Keep on.