When I began seriously writing, spending countless hours crafting a story I never counted the hours invested I didn't care. When I finished the story, I took a breath and attempted to physically pat myself on the back, saying "good job," because no one else would. Then either I was simultaneously writing another story, or I started all over again at the beginning and began the rewrite.
Every explorer, athlete, actor, artist, doctor, lawyer, firefighter, started with the first step. Except for Royalty, or if you are Harry Potter, we are not born with a stamp on our forehead that says what our lives will be.
No for most, it comes with the trial and error of living our lives. That is what our stories are about. Sometimes it is a conscious choice sometimes it's not, but either way to begin the journey is exciting to continue on the journey is tedious, dreary and often difficult.
I don't want to wake up and fight the world, win at all costs, no I want to be reminded that it is up to no one else but me. It helps.
Afterward, I get dressed, sit down, and write for about three hours each day. Sometimes six hours, sometimes 1 hour, but now after a year if I do not write every day I feel cheated and that I have wasted a day.