I now know that “success needs both your skills and hands, if any of them is missing its quite hard.” We just need to make sure we wind up behind the right door when the going gets tough, the answer is: craftsmanship.
There are two parts to learning craftsmanship knowledge and work. You must gain the knowledge of principles, patterns, practices, and heuristics that a craftsman knows, and you must also grind that knowledge into your fingers, eyes, and gut by working hard and practicing, all this takes time.
Time as time will wait for no man, not even you but it takes is having passion, perseverance, hard work and practice. I can teach you the physics of riding a bicycle. Indeed, the classical mathematics is relatively straightforward, Gravity, friction, angular momentum, center of mass, and so forth, can be demonstrated with less than a page full of equations.
Given those formulas I could prove to you that bicycle riding is practical and give you all the knowledge you needed to make it work. And you’d still fall down the first time you climbed on that bike, life is no different.