There's no question too dumb here, but I'd say the hands to post are where you were clueless as to what to do. I'd also try and focus on the more frequent spots that occur where you're having problems, rather than spots where it's a clear cooler e.g. when to fire 3 barrels as a bluff, when to cbet, etc. A lot of the hands Cobra posted recently are a good example - they were all really tough to think through and even then there's a lot open to debate.

I'd say your stats are probably too loose pre-flop for 2nl (especially if there's FR in there), as the rake is a killer. It's fun to play more hands, but I'd rather have more money (assuming you don't have a huge edge post flop). There's probably a stack of hands that you're playing that just aren't profitable e.g. flatting ATo on the btn vs an utg open.