You already know that learning is a super useful thing to do every day. It broadens your view of the world, it sharpens your mind, it makes life interesting, and it makes you interesting.
To really learn is to follow through on what you are thinking. Because whatever you are thinking, you have interest about and interest is a pre-requisite of learning. Following through is digging more and more about that thing.
One way is by writing it down. Have a blog, a journal, a book, writes whatever you think inside your head. Dig. Repeat.