I'm sick of being surrounded by girls! I need testosterone in my life haha!?

Ok so I'm engaged but my guy is in the army and I never see him. In highschool I had both guy and girl friends and I really enjoyed spending time with both, now I'm in an all girls school and I have 2 sisters. Anytime a guy friend wants to hang out I feel like it is wrong because I can't tell my fiance about it so I always say no. All I do is go to school, work, and dance. I don't hang out with anyone outside of school. I don't know, I guess I feel like it's not fair for me to go out and hang out with guy friends when my boyfriend is going through basic. I need some advice, I'm literally boring myself to death :( sometimes I want to transfer to another school but I get really good grades where I'm at and I'm getting lots of funding. Should I just suck it up and have a really boring social life? I feel like that's what I've done all my life, I have lots of friends but I hardly ever get to hang out with them, I'm either too busy with school or work, or I was overprotected and never allowed to hang out with anyone (in highschool) Another sucky thing is I don't drive, I only have my permit. I've had a phobia of driving since a friend of mine was killed in a car wreck and I've tried to get over it, I guess I need to practice that more. I don't know, please help, I really don't want to waste my life away but I also don't want to throw away a good opportunity. The other problem is I'm not even sure I want to go to school for my major, it was kind of a last minute decision and now it feels like an obligation. I just don't think that my parents will understand, I've tried to tell them but they say that if I don't continue what I'm doing it will be a mistake. Hmmm I guess that is like a billion questions in one lol. I don't know I have friends at school but I feel like I have changed, like I've become more tame since I went to this school, I feel like I should be having fun. Any advice?