Starting is tough. A plane burns most of its fuel when taking off. Similarly, a car uses more gas in the city than in the highway because of all the stop-and-go from stop signs and red lights.
Getting the ball rolling is harder than to keep it running. That’s why starting a new project is difficult. Just as hard is picking up a paused project. I’ve started writing on weekdays again and Monday morning is much harder than Friday morning.
Starting is key. Most shy away from the pain of beginning something new, so the first big differentiator is to start.
The second key differentiator is to keep the inertia going when roadblocks happen.