So the exact statistic is indeed about "entrepreneurs who make it", those who eventually create a successful business, how many time did they have to try?

Average is ~3 times, and your typical successful business (across sectors) takes ~2 years in "survival mode" (most don't make it past that mark), then 3 more (~5Y total) before things may feel "sustainable", cruising.

So indeed, we are not all considering those who don't make it in this picture. Creating a business is hard, very hard.