People act like they're having successful business.

In business there are many thing come from the outside, usually those thing aren't in your plan. Like, what if someone destroy your business, what if someone is washing other people brain to not use your product/service etc.
How to solve that? that depends on case by case, usually you know the solution after you're experienced in business.
Business is about adaptation, not preparation.
For this reason, it's never advisable to venture into areas where you don't have the necessary experience and skills to manage and navigate with their complexities. Even in the cryptocurrency space, investing isn't as easy as some might think, as it requires technical knowledge and minimal experience in asset management and network security, and, most importantly, understanding the differences between different networks on the nlockchain.
Exactly, venturing to something that you don't have any idea is something like throwing punches into the wind, there's no clear directions and just hoping that luck will bring something decent to attain success, it's better and always be a must to have that knowledge and skills before entering into any investment or business that you plan to have, it saves your butt in losing and wasting your resources.