You can do it much faster. However the quicker you rise to profitability the less stable your foundation is and the deadlier are any changes to the market. In my example I went from nothing to purchasing 500k in goods within roughly 6 months. When the Ukrainewar played with the electricity prices the company exploded though. There was no foundation to keep it afloat until you pivot.
Using credit lines aggressively for growth. I was careful about it, but it helped me the most. Unfortunately though I say credit lines. Banks wouldn’t touch what I did though.