How to Prepare for a Career in Coaching

I've never seen one of the pressures not there to win football matches on a Saturday. How would you recommend a young coach prepare or even gets on the right track to eventually get there and prepare in the right way? I'm trying to do more than the level that I'm working on. Whether it's nutrition periodization tactical periodization. Do we do individual player development plan in which most academies will do now anyway. But every step along the way is what do I not know that somebody the level I want to get to should know. And remember remember being 17 and writing down all the stuff biomechanics technical development, the physical development of players integrate within the thing. Even now