I just wanted to say that 18 to 80 never stop growing, when anything in nature stops growing it starts dying. At 46 I may be an old man to some, young to others, but I'm in great shape physically and mentally... Well I hope that I'm still holding it together. So continue to strive to be the best version of you that you can be and let nothing deter you. Remember " Trying is free, but giving up will cost you everything!" Have a great day!