Whats Next

I've been trying to figure out what I'm supposed to be doing with my life. The beginning of this school year had good hopes for me, but not being in school has proven to be harder than being there ever was. I'm afraid of getting older, Really I have everything I ever wanted right now, except time. I just want to stop here and enjoy everything and everyone that God has put in my life. I love my friends and being able to hang out with them, but if God points my life in a different direction will I still be able to hold on to those friendships? When I eventually move away I know I'll make new friends and have relationships that I cant compare to anything else, but I'm happy with the friends that I have. I'm scared of leaving them and/or not being able to hang out with them.
Another big issue that I've been struggling with is that I want to make a difference in the lives of people who don't have the freedoms and privileges I enjoy, and I know God has put that desire in me for a reason, and I try to be like him and treat everyone like he would want me too, but I want to make more of a difference than being a "good friend". Sometimes I feel like I should be doing something about RIGHT NOW but with so much else going on in life there's no way I could go off to another country to do something about it. God has also given me a passion for music, and I would rather sit and listen to music all day than do anything else. What I struggle with is how I can use my passion for music with my desire to help the needy, and on top of that moving away from my friendships to do it.