So I'm feeling lonely and I feel I need a girl in my life?

Don't get me wrong, I have a lot of guy friends and I go out and stuff but I want a girlfriend. Now the problem is right before summer started I asked a girl out and she rejected me, and ALL the girls from school are her friends, so it be very awkward if I met them cause she'd be there as well, I'm planning on being friends with all them including her but after the summer, because as time passes by it would be less awkward and I'd have a much better body cause I'm currently going to the gym, I'm not overweight at all, I have a good body but I have pectus carintum. Anyway I'm just feeling a little bit lonely without a girl at the moment so what should I do?