Now.....to answer your questions....
Listen to everyone that's posted so far except Whaledriver101 because I think they are all right and I don't want to repeat the same stuff they wrote. I agree with them 100%.
If you want a female's advice, PM me. I work for UPS.
And whatever you do....IGNORE YOUR FATHER AND GRANFATHER!!!! DO NOT, I repeat, DO NOT let them discourage you. It's your life to live, not theirs, live it how you want to.