In the first bunch of episodes of S2 most people agree she got less mature. People weren't expecting her to turn into a wise all-knowing Avatar (avatars are human and humans can be very dumb/stupid, i.e. Korra)...but at least starting to listen to her elders, showing some humility and toning-down her bitchy attitude would have been a great freaking start?
I'll be honest, LoK is the first time I've seen a character arc for the protagonist go backwards rofl.