First, learn computer science. Then, use your years of training to destroy things.
We first you need a grasp on linux and command line (cli) learning commands is a must so a good start with that is a game called hacknet. It teaches cli terminal commands and also ports and port numbers and a basic concept of how hack tools work. I can almost feel the Die hards cringing but im fucking right haha. Next once you can do basics and follow a how to get into running an attack linux machine againts a machine from vulnhub. You will need to learn cli bash html/css pearl ruby on rails python mySQL. Don't give up