Nice work on the 60 days - first things first, don't throw that away, that's the most important thing you own in life right now. Do not drink. Period.
Secondly, I've been there. I'm a few months ahead of you in the sobriety department and I was really struggling with my brain on a daily basis for a while there. Every decision was a huge battle and every move I made I overanalyzed to the point of madness. Trying to do too many things at once is a common frustration I had, and I learned I felt better when I calmed down, stepped back, and gave myself a break. Take a deep breath - life ain't so bad. Your health is improving, you've been sober 2 months, and you're in grad school - that's the big picture!
I can't tell you how to NOT be frustrated, but I can tell you that things do get better. And, things are probably better now than you think - step back and summarize your accomplishments. One step at a time Nate. Good job so far, keep it up and keep the faith.