Ever since my girlfriend split up with me, I haven't been the same. I became a dubstep dj, and from then on its been down hill and I've been binge drinking and doing so many drugs. Its *****ing my life up!

Its you screwing up your life by your actions. Get some help to change that with AA, and stop blaming the breakup.

Alcoholics Anonymous :

Break ups suck,but you don't have to suffer like this.

I understand you, break-ups are hard! But there's a reason she broke up with you. But grow from it and don't look back, you learn from your mistakes.

Also you should know that, it's not about understanding women... Every woman is different like every guy is different so it's about getting to know the person :)