User blog comment:BandicootBro/How to give your character proper weaknesses./@comment-4988763-20150215041849

Psychological weaknesses are usually the most fun to tackle into.

Those can really hinder your true strength. Naiveté, overconfidence, fear are some of them, but there's a whole lot more than those. However, despite being weaknesses in term, having some shows how real one's character might appear to be. Overcoming such psychological weaknesses is great for character-development in storylines, which is nice.