Can't really blame her. That whole Amon, Vaatu, and Red Lotus happen pretty close to one another.

Well to sum it up (SPOILERS SPOILERS SPOILERS~). Korra was mentally wrecked by a blood bender and just barely got out of that immediately after she left her protective home where she lived for most of her life, immediately followed by her uncle going full face-heel turn on her immediately while making it seem like her dad was, then she fought the personification of evil itself and her heel uncle before getting ALL of her connections severing her essentially making her another first avatar. This was followed up by a group of super thugs breaking out of jail (said thugs being the ones that tried to kill her as a kid), killing the earth queen, nearly murdering her friends, and family before being poisoned by their leader which was then FINALLY followed up to months of recovery in the poles where she had to be couched by the former avatar's wife which is like getting compared to her predecessor in her mind I would believe since it's like, "I bet Aang didn't take this long!" Now she's in a swamp as hell is breaking loose in the Earth Kingdom while she's being chased by a ghost of herself.