Hi Ryan. Good to have you here. Even drunk, your post is pretty decent. I'll try to avoid @ss kicking because you don't seem to need it at this point. You are looking for some answers or help or somewhere to vent, and that's a great first step! And I'll be honest: I was drinking when I first posted, too. Hey, I was here for help.
Like you I actually did pretty well with alcohol. I worked and took 20 hours of classes (upper-level science classes and calculus, etc); I was a great student, not just passed but got A's and B's. And I drank every day, most of the time until I blacked out. That was my life and it was pretty depressing to me. Even with all the amazing things I had going I still felt like a loser. Eventually though my performance at work and school started to suffer, I became more depressed. In my case I started doing drugs as well, which sure didn't help the situation.
Good for you on not making excuses. Go to AA tomorrow, it's a great resource for a lot of people. If you find that won't work for you, there are other programs and resources available. My "program" is right here, these forums, and it works for me. The important thing is to find a way to accomplish your goals.
Welcome to SR!