Is it okay to use hate and bitterness to propel myself to greatness?

All i got to say is I hate the ***** and I hope to one day show her that she ****** up. My GF cheated on me after 4 years of being together and never explained why she did it and just left. I'm the type of person to need someone because i feel good about myself but now i've got no one and i'm left all alone to figure this out, this seems to be the trick to work for me so i don't feel like such a loser but i question if anyone has tried this or if its even healthy, the more i think about the bad situation the harder i seem to push myself. CAn someone give me some insight, or words of wisdom, please!!