What an amazing first post.
So, in the midst of all of your self-destructive behavior you managed to pull a 4.0 GPA (in engineering, no less), and pursue a PhD? I wonder if you have any idea how many achievements await you if you are able to stay sober. I mean, really.
Please post often. I can't wait to hear how this turns out. I will be thinking good thoughts for you.
Good luck. And welcome to SR.