Being a bitch (male or female) is a conscious decision to let the words/actions of others affect you emotionally.
You carry that emotional baggage around with you attempting to disguise it with an attitude that YOU don't even care for and by lashing out like a child and referring to it as "speaking your mind."
That's not you. No one is born that rotten.
Scared to be yourself.
Scared others will criticize you negatively for being the one and only YOU.
What you fail to realize is that they're just as scared, broken, and hurt as you are. (if not more.)
Take back control.
Stop being a bitch.