You need to act.
You need to create. Create and create some more. Because when you create, you are forced to really learn. I’ve never learned more about a subject than when I was writing a book on the topic. I’ve learned more about parenting by taking on three foster children than I could by mindlessly browsing the internet or even reading books. When you learn through experience and toward goals, you learn with the purpose of immediate application.
You learn through doing.