You need to take action and learn from the mistakes
Knowledge come only from experince.
Take action and learn from the mistake is very important as a human beings some people's are not thinking of making corrections from the mistake they make from the back and that is why some people's the people's are not progress in what they're doing or in there working place. Honestly knowledge is always come from the experience, because even thought a person have knowledge and do not have any experience the knowledge is nothing. Why I said is nothing because some people's can get only experience and whatever they come to do will more wisely and better than those have knowledge.
You can read books listen all the gurus, but it's nothing compared with your own experince.
Instead of reading the books or listening the gurus learn the basics and start action make some moves because you will need to be ready to make mistakes don't take this emotionally be with mindset that you gona have nice long 3 years of working with something make mistakes don't think about them too much just make notes what went wrong and move on dont make same mistake try new way.
Sometimes you can be reading a book and writing it down but still you can not compare what is written on the book with own experience, example now is you exam in the school you cannot just depend on what is inside handout or what the lectures thought you in the class it can be done, at least you have to join them with experience make everything move smoothly.