How much can you realistically make with affiliate marketing if you're not a famous blogger ?
There's no set number or amount of dollars that anyone will tell you that you can make regardless of your notoriety as a blogger. Famous or not, the reality is that you "can" realistically make money with affiliate marketing as a blogger.
Quantifying what you can make is impossible. You may as well tell someone they could have the moon. The money that you can make with affiliate marketing is dependent on several different variables. Everything from niche, to effort that you invest, to any number of strategies that you can employ to traffic, products, price and audience all affects what kind of money you can realistically make.
It's more than just asking if it's possible. Success and making money with affiliate marketing isn't possible until you make it possible and that is largely dependent on you amongst all of the other variables I've mentioned already.