Here’s a simple exercise you can do right now. Take a sheet of paper out and make a list of all of the things you would like to learn. What do you not know but would like to find out? Do you want to learn how to scuba dive? Learn a foreign language? Photography? Programming? Is there something more obscure that hasn’t already been written about? Just start writing down everything that comes to mind. Work on the list and you can narrow down and explore the subjects later.