I have tried so many online business strategies. SEO, paid advertising, social accounts, and more. I can say in short - all you have to do now is choose 1 or more strategies and do them every day!
Every day develop in it and make an effort. There is no such thing as passive income.
You still have to do something every day. There is no red button - money.
There is no single system which you will follow and investing 100 bucks you'll get a thousand dollars. There is no such system.
For someone it may work so the strategy, but for most no. Therefore, having chosen certain business strategies, it is necessary to follow advice and develop every day, watch YouTube channels, listen to webinars, read books, etc.