I agree, ring games take a lot more skill.
I had a lot of trouble when switching as well, i was down quite a bit before I dug myself out of the red.

One change I made was to buyin for 100bb($2), looks like you're buying in for the max.
This made a lot of my commitment decisions much easier, especially with overpairs and TPTK type hands.
Also, it's harder for others to extract the value for their "miracle" hands that many at 2nl like to play.

Note: You're actually playing 2nl (100bb x .02 = $2)