I think wisdom is pretty unevenly learned and its not a guarantee 32 or 42 year olds or 82 year olds have it either. See our well aged POTUS. Either way you don't need wisdom to start working. So many of the "best" minds in various fields started working in that field at like 16, maybe dropped out of college and dug right in. Their initial intellect or specific circumstances allowed them to skip the normal path but really I think a lot of people would have a lot more success if more were allowed to start on real work earlier, and weren't being held back by process like this.

Again, just kind of sucks that you finally hit your stride in your career right as you feel your body and faculties declining with age. I don't think we get senile as soon as people notice you are definitely senile. I think it is a constant slide.