I doesn't matter what you learn, just keep learning! You can even focus on one area, such as healthy eating, or exercising. If you learn something new everyday about those things you'll be amazed at how fast you'll start changing your lifestyle around!
I like to keep a what I learned today journal. It can be motivational and it's also a record of something I may have forgotten. Try for at least one new thing everyday, but if it's multiple things...Great!!