RE: Landing under power...
I spend more time doing touch and gos then anything. I just enjoy them. Sure I do other things like loops, rolls, flying inverted, etc but I try to make a pattern out of it. Take off, do some acrobatics on the way back to the runway, do a touch and go, repeat. Of course I don't do as many touch and gos if others are flying, just out of courtesy, but I am usually the only one at the field.
Sounds like you are progressing nicely. Great job!