My concern is that Miles apparently thinks Blake needs to stop blaming herself for things, but she actually seems like she should start taking responsibility for things, or at least learning from them. She ran away from the best home life in the series as part of some sort of idiotic rebellious phase, she ran away from Adam and didn't take any measure's to keep him from coming after her, and basically acted like he didn't exist during the first two Volumes, and she ran away from her team without any explanation to them, with no apparent intention of doing anything about the White Fang. So explain to me how any of what's gone wrong in her life is anyone's fault but her own? (Don't misunderstand, Adam is still a huge prick for being abusive, and nobody deserves to be on the receiving end of an abusive relationship, but her decisions landed her there. And that's really only a small part of her problems.)
Turning around when your best friend is screaming bloody murder is a mistake. Not realizing that said best friend has a crush on you, and flirting with another girl you genuinely admire despite her disinterest, is a mistake (and a result of writers forgetting that you're supposed to be smart). Running away from all of your problems, without doing anything about them, and thinking they'll go away,(essentially thinking life has no consequences) is idiotic and immature living. Doing so over and over again, is the definition of insanity, or just sheer stupidity. Not something we'd expect from "The most mature member of Team RWBY."