Did you know that the best way to learn something is to teach it to others? This is true not only of writing but of many things. In fact, many people teach whatever it is they most want to learn.
If you’re passionate about writing, try this: Get hold of a piece of unpolished writing – it could be your own – and try to find three things that could be improved.
Then share your findings with a friend. You’ll be surprised how teaching someone else can enhance and consolidate what you already know.