I'm confused and don't know what to do?

your struggling with it because you have feelings for her and dont want to hurt her but in my opinion its the best thing to do, your right in saying family is soo important but at that age you dont usually understand that yet. to be honest once you finish high school youll probably only talk to a couple of your friends still, and usally high school relationships dont last forever anyways. you shouldnt take all that stuff so seriously just focus on school because thats what matters to do good after high school, all the things that you think are nerdy right now youll think are cool later and the things you think are cool will seem lame.. the only thing thats forever is your education.. worry about serious relationships when you have more to offer :) so many people dont get to hear that early.