Be thankful.

Never forget to be thankful for the simple things in your life. For me, it's running. Simply going outside, enjoying the weather, and getting a workout is something that I can't live without. Yesterday, I would have done anything to have 30 minutes to run.
But I'm also thankful for a million other things, which is true for everyone! Just think about it. And remembering all of those things is a wonderful way to brighten your day.