I've used meth before, and over six times (if I had to guess about ten), and I have absolutely no regrets over it, physical or mental; it's just a learning experience. I highly, highly doubt that you have that egregious problems from using six times over the course of three years, although you could've got some very bad stuff, it's all variable. I respect where you're coming from, however in my experience all forms of psychoactives are merely leaping pads into further exploring my mind and conciousness, and I'm never afraid to take a jump.