Nobody knows how the algorithm truly works
We live in the real world, and in the real world the truth is: the more people see you, the more opportunity to earn money you have.
I have been thinking… internet is supposed to be decentralised, but in reality there are several major corporations on whom you depend for your traffic. Sure, it is supposed to be free, but there is a catch: you have to pay with your time.
What search queries people use? What exact words you must use in your texts in order to please the algorithm? Nobody will or even can tell you for sure. Because nobody really knows.
There are giant companies like Ahrefs who sell you pretty much snake oil: how much people search for a particular query monthly. This is not a substitute for a proper marketing research, though. You still have to do your own homework.
And if you fail — the price is wasted time and opportunity. You might have earned some experience, though. Make sure to capitalise on it.