So far so good. 2NL results have been fine since starting back. A limited amount of playtime has kept my sample size small but looking good: 900 hands of 6max at 50bb/100 and 1200 hands of Zoom 2NL at 22bb/100.
I can see a lot of my mistakes, but I think that my increased thoughtfulness in the moment is improving my play.
Encouraged by these results, I decided to play some 5NL, to get some hands against tougher opponents (and maybe make more money). A Saturday night seems like a good time to do that. My results were mixed, but I'm happy: I'm down about 22 bb over 500 hands, playing between 3 and 4 tables, but I'm also running 7 buyins below EV over that same span.
As Tommy Angelo has pointed out, being below EV is meaningless if you would have played the same way as your opponent and he would have played like you:
Tommy Angelo & Reciprocity. I thought about the two biggest hands resulting in that EV difference, and I believe if I had been my opponent, I would not have played the same way, suggesting to me that in theory, I had a profitable night. I was proud of myself for coming so close to breakeven.
One factor helping with my renewed effort is I am working harder at focus. I don't have the TV running in the background, and I try to limit my poker-related browsing and busywork while I'm actually playing. When I am watching a video, I am taking notes, pausing to work out examples before the instructor, and avoiding other distractions while I go.
After finishing up the second episode of Mathematics of NL Holdem, I'll do more than the cursory review of hands I've done so far this week and come up with some to post in the forums. Hand discussions really are helpful to the process as well if you can get a conversation going beyond "fold pre" and "the standard moves".