Self Coaching - achieving goals succesfully

Do you ever get to the point where your to-dos overwhelm you so much that you don't know where to start? When the amount of to-dos seems unsolvable or your desire for change in one area of your life seems unattainable? 
Imagine a mountaineer who wants to climb a 6,000-metre peak. At first glance, this goal seems unattainable. But he starts with the first step - then the next, and step by step he gets closer to the summit.