It's a nice place to chat and to learn, but I have to ask, what do you mean by "powers that run in the family"? And you being a "princess in the witch world"?
Also if you want to join a coven then head over to the groups tab at the top of the webpage and have a look through the covens that are currently accepting new members, you may find one that draws your eye.
Welcome. If I could make a suggestion then it would be to just be yourself and don't worry about making up stories to make you seem selfish. There is no "witch world" nor are their any "witch princesses". Just tell us about yourself. We'd really like to just know you.
As for joining a Coven here all you need to do is to go to that Coven's page and follow the instructions there for making an application.