Starting is Hard. It Gets Easier.
To go from 1 to 2 it's a 200% increase. To go from 2 to 3 it's just 150%. From 3 to 4 is a 133.33%. Each step is succeeded by an easier step.
However, going from 0 to 1 is an indefinite increase. Starting is damn hard because you don't build from anything.
Eliud Kipchoge didn't have a reference to train by when he ran the first sub 2-hour Marathon. YouTube didn't have a reference of how a video website should work.
We are capable of building everything we want because we, as humans, have creativity. Building something out of nothing. Tranforming our environments through our minds.
Going from 0 to 1 is hard. But it gets easier. Then you just have to keep doing what works, not invent it.