My niece and nephew are young but can both cook. if you don't know you learn the same way you learn any other skill. When I was figuring it out I looked up simple recipes and mastered those and then moved on to more complicated ones. If I didn't know how to do something I watched someone on Youtube do it first. Even when I was starting out it was rare that I ended up with a meal that was inedible. There's nothing to be afraid of.