Thirty days is wonderful. Sixty will be even better.
I recall feeling good physically. There were a lot of things I was suffering through that I didn't think were related to my drinking, but went away when I stopped.
Emotionally I was still going through a lot of ups and downs. In the 30-to-60-day range I got a whole different perspective on my drinking...like just how bad it was. So there was a lot of guilt to deal with. But being honest with myself opened me up to recovery.
I also recall being plagued by the mental obession to drink. All the time! This didn't go away at 60 days, at least not for me, though my ability to handle it improved. As I look back now, I was a lot closer to relapse than I realized at the time.
And as I look back over posts I wrote during that time, another thing stands out about my second month sober--I thought I knew SO MUCH. Hah! So don't be too prideful about your progress; it's just starting.
Good luck on the next 30.