Zero social life only one "friend" any advice?

[Nick]

I'm 20 years old living with my dad and going to Navy bootcamp in 3 months. For about half of 2013 up until now I just sit in my room and play minecraft pocket edition, do facebook, or watch youtube videos. About once a week i go hang out with my 21 year old friend and go play more video games until 6:00 AM and we get bored because he always has to be a winner, we have to play minecraft on peacful because he can't stand a challenge and he always has to disagree about everything. if he's bored and doesn't want to do anything then he makes me sit and stare at the screen too while i could be playing a variety of different games, other than that he is a good friend. can't skateboard because it rains all the freaking time. So i just sit in my room all day every day getting lonelier and lonelier. I don't have anything to do because i don't earn money yet and every girl i know hates me because i'm so desperate for social interaction, i can't help it. Any advice how i can stop being a loser?