SUBREDDIT: r/relationships
TITLE: My love life has gone to shit, and I'm surrounded by live triangles/squares
POST: So I [F, 16]have had a few major crushes recently, all of which have failed. The first one[M, 16], me and my friend[F,16]both liked the same guy, so I backed off and let her have him. The second crush[M,16], two of my best friends[F 16&17] and I had a crush on the same guy, and I backed off to let the two of them duke it out. 

Now for crush three[M, 17]I had a crush on this guy, and as far as I knew, none of my friends liked him either. As my crush was slowly developing, one of my friends, E [F, 16], who had told me to back off for crush two, tells me she asked crush three, C, out, and that C had said yes. 

I want to support E because she has backed off for me in the past, yet I am a little hurt because she told me she had a thing for crush two, then goes amd ruins any possibility of a relationship with C for me. 

At this point, I am quite disillusioned with any relationship, as my past crushes were all love triangles in which I lost. My life has become some crappy high school drama fueled with love triangles and I hate it. I don't want to be single, but in scared of putting myself out there again not to lose once more. 

What should I do? Should I try to win C? Go back to two or three? Wait and see if there's anyone else? HELP!!!
TL;DR: 
I'm disillusioned with relationships, how can I get back out there and maybe win in one of the love triangles it seems I am always in.