Stop thinking too much about roleplaying a female and just focus on roleplaying a real person.
Don't feed into stereotypes too much. Women are usually more emotional but don't go over the top with it. Not every female is crazy.
If you're clueless or stuck it's best to take characteristics from ex-girlfriends, female friends etc... that you know in real life and form your character's personality that way. Just try to make your character believable.
Culture. If you're roleplaying in a gang too try to educate yourself more on how women are treated, it can help shape your character.
You really don't have to oversexualize them so much people... which reminds me, stop using female characters as a way to unleash and live out your ungodly fantasies and desires. There's other games and sites for that.
