Everyone with an audience started from zero at some point.
This was my start, 12 months ago:
This was my start, 12 months ago:
And this was my progress over the following 11 months: 
One thing to avoid is an expectation of smooth linear progress (because that will likely disappoint you). While at the month/year level the growth might look almost linear, on a daily level it's mostly flat, with occasional random spikes:
