I stumbled across this list on Tumblr and found the suggestions manageable, doable and, most of all, a helpful reminder that we always have a choice to be happy. Smiling always helps. This was a suggestion a friend made during the Ironman - whenever things start to get tough, just smile. It changes your mood and has an effect on those around you.
And most importantly, the last suggestion on the list. Albert Einstein has a great quote "Everybody is a Genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid."
Any that were left out? How do you find your confidence?