That's an awful thing for a father to say to his son. No doubt it's coming from his own insecurities which are making it hard for him to love you the way that you need right now.
It's absolutely fine to go on meds and not get therapy if that's what your preference is. It's fine over here, anyway, and I imagine it's the same in the States.
You should stick around SR, Whopper, you'll get lots of support here :-)