You need web traffic to make money. To put it another way, you need visitors to come to your site. The more the better.
In order to get traffic your site needs to be full of lots of so get good, unique content. Hundreds or thousands of pages will make more than a dozen pages as long as there is real content, not automatically generated rubbish.
It is difficult to write hundreds of pages about a topic you have no interest in.
However, it is surprisingly easy to write thousands of pages about topics that interest you.
Write well crafted creating pages and other people will want to read them.
Do not forget to use a spell checker. It is a fact that poor spelling really annoys about 30% of the population. Only an idiot would decide to alienate one third of their market and therefore, effectively give away one third of their earnings