It seems like the trick is to survive the failures till you get a success. If someone built a business in just 3 years, I would count them lucky.
I've know quite a few entrepreneurs. All of them survive at this point, and a few are supporting themselves quite easily, but only a small set are in the multimillionaire category (and frankly finding out more about their actually back-stories, they did some shady things to get there). Based on the sampling of entrepreneurs I know, it seems like the separating element is not hard-work and sacrifice, but a looser set of values, and a willingness to take advantage of people.
I know this is fake, but do people really think small business owners are the only ones who work like this? What about doctors, scientists, engineers, etc.?
Practically everyone I know has a back-story of sacrifice, hard work, and discipline, and only a small fraction are business owners now. Whoever wrote this seems to come from a lazy set of friends, and his character complains that he is the only one that "sacrificed", and insults his employees by saying they only come in at 9, check out at noon, and leave by 5.
Practically every engineer in the tech industry works long hours, and those who got advanced degrees have been doing it since they were children. My old roommate brought a bed into his lab, and basically slept, worked, ate, etc. in the lab till he got his masters. I have a friend doing her phd now who is planning on doing something similar.
I personally have spent several months living out of suitcase and a sleeping bag in order to work an internship. There are many people in the generation before me who arrived in the country with nothing more than a suit-case and the clothes he was wearing. This is the typical type of story of people I know who are starting out in life (unless of course you come from a privileged background like this fake guy, or whoever wrote it).
I appreciate that small business owners work hard, but so do most people (again, unless you come from a privileged background).