You are already all you need to be. Maxwell Maltz said, “Do not tolerate for a minute the idea that you are prohibited from any achievement by the absence of inborn talent or ability. This is a lie of the grandest order, an excuse of the saddest kind.” You don’t need anything more than what you have. You don’t need a special talent or pill to have brilliant concentration or a great memory. All you need is a willingness to learn, a method, and self-discipline.