no offense, no one 'needs' a mentor, it can help, but most here learned on their own, and when they get stuck, they ask, they did not seek out a mentor. granted everyone's different, but it's probably best in the long run if you study on your own because eventually your path will go in a different direction than your mentors.
a mentor isn't always female, there's plenty of male witches who are very knowledgeable, so i hope you're not limiting yourself to one group [or that was a typo]
if you need someone to help you with problems, like someone upsetting you, you do have a series of options that doesn't require a mentor. you could meditate on your problems, have a journal, talk to someone you know like a friend or family, seek out your spirit guide for help. not sure where your from, but the kids help phone's another option. it's free and confidential, you get someone to talk to and give out advice for any problem you might have [my friend use to volunteer for them and i did a few fundraiser for the help phone, they're there to listen]
sorry to get off the mentor topic on that last point, just trying to provide solutions for you. what do you want to learn? [before you ask i don't teach] maybe explaining yourself more than a sentence might reap greater results. blessed be.