I'm just starting at Clickbank, so I'm a total newbie, but if I want to follow this strategy can I do it promoting just one product, for example, Category>Health & Fitness ---> X product. Then, should i start a blog or something like that where i can talk about things related to the product subject? if so, do i have to start making entries about this recurrently? or I can opt for just making an article with a free ebook in exchange to user's e-mails and follow the process?
There absolutely is still room for new affiliates, because there are always new products to promote and new audiences to reach. The internet is a vast place with infinite verticals to work in, so instead of just focusing on the biggest affiliate programs in a specific industry I recommend using that one as well as others (and Amazon!) to round out your affiliate offers and thus your revenue.
I've been doing affiliate marketing – successfully – for well over a decade. While I earn affiliate income from this website, I've made the bulk of my affiliate revenue from selling real users products and services – in multiple niches - that have nothing to do with the making money online niche. I've been nominated as Affiliate of the Year three times in the Affiliate Summit Pinnacle Awards – taking home the award in 2016. I've spent the last decade+ teaching people how to find success with affiliate marketing - based on my own experiences - as well as advocating for the industry as a whole. I'm often blunt and can sometimes be controversial, but I'm also 100% bullshit free.