I Struggle With Addiction

After I get back from school I am having a really hard time controlling myself right now. Getting stupid drunk, screwing asshole guys, not coming home till just before the sun comes up. I thought it was because I feel rejected, or have this fear of rejection, because the pieces all fit. But it just doesn't feel like the answer... So I continued to search for the reason...
This happened to me the last time I got back from school too. What I don't understand, is why do I lose it when I get BACK from school?! I'm holding it together just fine before school, and the whole time in at school, its nothing but energy healing, chakra balancing, aura cleansing and pure unconditional love to, from and for everyone! This should do nothing but HELP me on my path, not drag me down the wrong path! So confused!