This is a trend I notice quite a lot in books and I find it somewhat irksome. It does tend to commonly appear in fantasy books but it occurs in various other genres as well. The gist is the protagonist of the story will discover that s/he is some how different from everyone else. Maybe they discover they have some magical power, or come from a family who lives a unique/alternative lifestyle, or inherited a particular ability or skill from a parent/ancestor. During the course of the majority of the book they resent and bemoan the fact that they are different and with they could be "normal" and just like everyone else.
I am interested in books of any genre in which the main character embraces and celebrates being different instead of treating it like an unfair burden.