My ADC last hitting needs improvement, although it's not terrible. I sometimes disengage fights too early when I perceive we're at a disadvantage, and often it leads to teammate death. When I jungle I have a tendency to ignore bot lane because it's usually the most warded. I usually forget wards too much during laning phase unless I'm in bot lane (either support or adc). During teamfights I try too hard to focus the squishies, and I usually end up with bad positioning because of it--the exception is when I'm a bruiser/tank who needs to be in the middle of the fight, but I'm talking about when I am the squishy carry who will get focused first. If I'm support/jungle, I forget about buying oracles a lot. I forget item actives with the exception of Wriggles' ward active (think Shurelya's, Randuin's, Locket, Gunblade, etc.).