Regarding starting a business, globally only 20% of startups make it past year 5, and of that amount only another 20% make it past 10 years. The market basically filters weak businesses out of the market. Good companies are clear on their USP’s and competitive advantages and communicate these clearly to the market. This is a skill that you either develop slowly or never on your own or fast with the right support.
Your ability to network and connect with other human beings is also important
There is not a single other person’s other than your spouse, kid(s) and coach (if you have one) that want you to make big profits. If they could get what you sell for free, that would be better for them. This is why growing a business is a skill that needs to be developed
Picking very competitive or obscure businesses are also key factors for failure