Until one is committed, there is hesitancy the chance to draw back, always ineffectiveness...
But the moment one definitely commits oneself then Providence moves too.
All sorts of things occur to help one that would never otherwise have occurred.
A whole stream of events issues from the decision raising in one's favor all manner of unforeseen incidents and meetings and material assistance which no [person] could have dreamt would have come his/her way.
Whatever you can do or dream you can, begin it.
Boldness has genius, power and magic in it.
Begin it NOW. --Goethe (translated by Robert Bly)
So what are you committed to in your life?
What do you want to be committed to but maybe are not yet?