Or maybe you've looked mostly at the IM-related and MMO-related products (for the sales of which - obviously enough - it's sometimes difficult to be paid all your commissions because people tend, understandably, to buy them through them own hoplinks rather than through the hoplinks of the referring affiliate), and ignored about 298 other niches represented there?
Find work. When you first start out, you may have to accept work writing about a topic you don’t find all that interesting. You must keep an open mind and be willing to accept work that may not be in your desired field. However, as you continue to write, you not only learn about more topics, but you also build your reputation. With time, you can be choosier about assignments you want to accept.
How much will you make? I think my best month with Google AdSense was almost $5,000 over the last ten years. That amazing month blew my mind since it was actually near the beginning of my blogging journey. When you go from making zero to $5,000 in a month, that will rock your world. For me, it also got me even more excited because I knew there were other ways to monetize.