Tell me what you think about my story so far?

I am captured by your "prologue" but wonder why you have chose to call it "prologue?" To me it seems to be the meat of your real story... I think if you could figure out a way to bring your two story themes together (teen runaway after abuse by mother's boyfriend) you have a really solid story idea. Also I think you are trying to put too much information into your story line (your thoughts about "I don't know why my mom picks such losers..." as an example). Sometimes too much "thought" information can be distracting to the reader. Also, try to stay away from trite phrases ("pot to piss in"). Just some initial impressions here... find yourself a "peer editing" group to work with and keep at it!