The moment nature decided to give you an intellect, it removed the upper limit to your evolution. You can be human and achieve whatever you want. See - It takes nature millions of years to change an insignificant trait in a population. It takes tremendous discipline to move on that path, as a designer. It is surely possible to do what can take Millions of years in a moment, if you reach a certain intelligence or a certainly intense effort. In the end, you can decide what the next level of evolution should be for you, but first your foundations must be even stronger to handle tremendous changes that will happen.