It's easy to fall into the trap of wanting your character to be the most attractive or loudest most/popular. Brooding characters are becoming rarer (however, rude/outspoken characters are fairly common) likely due to a lack of a sympathetic response to these tendencies. Weaknesses often are rare in a character that is meant to be your protagonist in a world of competing personalities, understandably so. To attract RP, you need to be easier to understand and agree with presumably.
So is your character unique, and how? Do you have flaws or motivations that are very human and interesting, that evoke some theme or profound concept? How do you justify your character's raison d'etre and desires?