In “Margin Call” there’s a quote: There are 3 ways to make a living: be first, be smarter, or cheat. What do you think? –@Candriawan
None of those are the answer. There were many search engines before Google, for instance and many social networks before Facebook. So they were first but didn’t make a living. They all failed. And being smarter doesn’t always work either. Microsoft products were never considered best (Steve Jobs gave some funny quotes to Walter Isaacson about this) but they won.
And cheating might work, but also might make you end up worse than you ever were. So all of the methods above could work but they also might fail horribly.
The absolute best, surefire way to make a good living is to help someone else make a good living. If your business or service helps others make money, particularly if your method is scalable, then the amount of money you can make is incalculable.
For instance, when I really needed to make some money, I advised someone on how they can sell their business. They made $41.5 million dollars. I can guarantee you I made good money when that happened. I was spending a lot of time, for free, before that happened. But once he made money, I made money.