While these models have diminished in mature e-commerce and online advertising markets they are still prevalent in some more nascent industries. China is one example where Affiliate Marketing does not overtly resemble the same model in the West. With many affiliates being paid a flat "Cost Per Day" with some networks offering Cost Per Click or CPM.
If you have previous experience as a computer programmer, or have skills in this field, then there is plenty of work you can pick up as a freelancer. If lack of confidence is holding you back, then Free Code Camp is an excellent way to get your foot in the coding door. This organization provides free courses where you will build real-life apps and programs, giving you experience and plenty to add to your CV.
The problem with affiliate marketing, like many other home business options, are the so-called gurus and get-rich-quick programs that suggest affiliate marketing can be done fast and with little effort. Odds are you've read claims of affiliate marketing programs that say you can make hundreds of thousands of dollars a month doing almost nothing ("Three clicks to rich!"). Or, they suggest you can set up your affiliate site, and then forget it, except to check your bank deposits.