The thought "It's impossible" sets off a chain reaction of other thoughts to prove you're right.
Hesitation only enlarges, magnifies the fear. Take action promptly. Be decisive.
Persons who reach the higher rungs in business management, selling, engineering, religious work, writing, acting, and in every other pursuit get there by following conscientiously and continuously a plan for self-development and growth.
Attitudes are more important than intelligence.
Action cures fear. Indecision, postponement, on the other hand, fuel fear.
Believe it can be done. When you really believe something can be done, your mind will find the ways to do it.