Actually, certain secular vocations and the religious life are not necessarily exclusive. There are Priests and brothers who are involved in music and art. One Jesuit Brother is an astronomer (PhD). There are religious involved in music such as a Priest in the Friars of the Renewal if I recall correctly. So, do not think that being one necessarily excludes the other.
Next is that you are young and certainly have time to discern where God wants you. If God wants you to be a Priest or Brother you will not be happy until you fulfill that vocation. Right now there is time to discern. Find a spiritual director and explore the issue. Even if you were to become a Priest you MUST earn an undergrad degree (with certain courses) before even entering seminary (i.e. this ain’t happening next week and this is good as you have time to find out where you are called).
If you decide you want to pursue a secular career and are not called to Priesthood but want to consecrate yourself I understand there are ways to do that (including possibly belonging to a religious order but living in isolation in the world and serving in your secular calling…(
help some of you folks with more knowledge of this area than me). One order I can think of is the Brothers and Sisters of Charity (John Michael Talbot founded it) and there are others.
Here is a video about the rocking Friars of the Renewal and some individual stories:
vodpod.com/watch/1270024-funky-friars-the-franciscan-friars-of-the-renewal