I recently listened to an introduction of one of Dale Carnegie's book called How to Stop Worrying and Start Living. It's a book I intend to read (or listen to) at some point. The intro was very interesting and I created a quick sketchnote about it. It's a very no-non-sense approach to facing your fears and taking each daunting task, on step at a time. His quote about living each day in day tight compartment reminds me of a quote I heard Will Smith say about laying one break as perfectly as a brick can be laid every single day, and soon you have a wall. It also matches what ET said in a previous TGIM about beating a tree 1000 times in the exact sample spot and eventually the tree will fall. For some reason, it helps to hear the same idea presented in different ways to actually get it and eventually live it... "Repetition is the father of learning" (Lil Wayne)
There's also the concept of concerning yourself with the task at hand. Don't worry about the past, don't worry about the future, just do all that you can do today : "Our main business is not to see what lies dimly at a distance but to do what lies clearly at hand"