Right from the womb.
Started at about 25, after 10 years of training naturally. I'm almost 29now, best I've ever looked and improving daily. Amount of pussy I could fuck is literally blowing my mind, probably a combination of a greek god body and increased maturity/skills of The Game, I'm not single tho', takes lot's of will power to resist. But I've started right when I was really ready and had enough knowledge, ins and outs, was ready to take regular BT, etc.. I'd have continued training juice or no juice, I've always had the determination and liked to lift weights. It's more like a "price" for myself, for that decade of consistently banging my head against the wall in hopes to improve further training.