I have done much research and there is not about these questions. It is a real specialty. I would be shocked if there are more than one thousand professional shoe designers in the world. Since you are also near the age in which most people decide what they want do after high school, I have answered your questions as best as I can. First, I strongly recommend that you begin looking for a profession or job that you will be happy doing.
Many people work for money, rather than enjoy doing their work.
It is extremely fortunate for those who are able to do work that they enjoy and also get paid for it. In case you actually become a shoe designer, I hope that you design lots of high heels. Do not be embarrassed. There are both men and women who have been extremely successful in designing women's high heel shoes. Some of the male superstars are Manolo Blahnik, Salvatore Ferragamo, Andre Perugia, Roger Vivier, and Stuart Weitzman.