<human>: Condense the text into a few key points

So my first relationship ended yesterday. My gf[18] and I would have been going out for two years this August 4th, but apparently it wasn't meant to be. The first half was fantastic, what with young 'love' being as potent as it is. I do believe that at some point I truly did love her, and to some extent I still do care for her greatly. Seeing that this was my first relationship (and therefore, my first break up), I have no idea what to feel. 

Back in March, we took a one month break because we had some issues. I feel the same exact way I did then, except I can't seem to wrap my head around the fact that this is more or less permanent. The break up was more or less mutual, as we were both unhappy, but I can't help but think I really want her back. Am I just being emotional? Should I try to completely block her out? Do I go find a rebound girl and have a one thing fling?

I'm seriously a maelstrom of conflicting emotions right now, and it is making it difficult to think straight. Part of me is enraged beyond anything I've known before because I feel cheated in the way she ended the relationship. Another bit is grieving for obvious reasons. I feel like I should be happy now that we are no longer seeing each other since I wasn't satisfied with our relationship, in addition to the other perks of being single (happy wallet, more time with friends, etc.), yet there is still this looming feeling that I want her back. It's like my heart says 'go get her', but my logical mind, in addition to everyone else in the world, says 'it's over.'
<bot>: Going through my first break up. Help me Reddit... I don't know what to do. Give me advice on what to do or think, or just lie to me to make me feel better, I don't care.