I am Little League World Champion 1962 who quit playing baseball later in life since the players were not making any money. I've built, designed yachts, and sailed 30k ocean miles. And was a Windsurf sailmaker for the 1984 US Olympic Team.
There is no substitute for experience. As a AIA construction manager I participated in numerous billion dollar projects. As am US Army Corps prime contractor I built pre-engineer bldgs across the Pacific.