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.
Unfortunately, the 2Checkout dashboard is a bit limited in scope, making it difficult to get any metrics on conversion rates or even sorting by commission payouts. The workaround is to go to the Avangate store, which does list their best-selling products, and then search for these on the affiliate dashboard. That being said, 2Checkout does offer products from more than 4,000 different vendors, making it the leading affiliate network for software and digital products.
JVZoo’s strength is that it allows experienced marketers to gain access to product launches and a huge range of online courses while setting up sales funnels and customized landing pages. It’s definitely not for someone who wants to monetize a blog or earn money by having users click through and buy physical products. If you’ve carved out a strong presence online in the marketing space, JVZoo might be a perfect fit.
Check if you need a model release. Photos of people can only be sold for commercial use if they've signed a 'model release' that gives you permission to use their image (children need a parent/guardian to sign). Without a release, these photos can still be sold for editorial use, as long as they were taken in a public place – eg, if you submitted a 'breaking news' shot with people in the background. If there's any doubt, always ask permission.
My tip: Have one main credit card. Have a second one that you use for necessities – such as groceries or gas – that offers rewards for those purchases (a lot of cards do) and set the second one on auto-pay. You should be able to pay off a smaller amount on auto-pay if it is a necessity. If you think you cannot, then you may need to cut down a lot on expenses.
Next, you need to set up and build your YouTube channel. Your YouTube channel is your homebase for all your content. If you already have a Google account for Gmail or Google Drive, then you can use that to log-in to YouTube and start setting up your channel. Pick a username that works for you and is memorable (if you’re using an existing Google account you’ll have to edit your username in Google+).
Find a profitable niche. Starting with your interests, write down as many niche ideas as you can. Think about topics people might search online. Ideas include passions (like surfing or body building), fears (like spiders or speaking in front of crowds) and problems (like getting out of debt). Do keyword research to see it others are interested in the topic. Find out if a domain name is available that matches the keyword 100 percent. 
In the case of cost per mille/click, the publisher is not concerned about whether a visitor is a member of the audience that the advertiser tries to attract and is able to convert, because at this point the publisher has already earned his commission. This leaves the greater, and, in case of cost per mille, the full risk and loss (if the visitor cannot be converted) to the advertiser.
There are loads of resources for making money online as an affiliate. You could source products from ClickBank, Commission Junction, Rakuten Marketing, Share-a-Sale, Impact Radius and many others. Plus, many of the larger companies have their own affiliate programs as well. Do your due diligence and find the right company with a relevant product or service to your audience that you can sell as an affiliate.
Take it seriously. Yes, you’re applying for an online job. Yes, you can do the work in your underwear, but that doesn’t mean it’s not a “real job”. You must treat it as such or they aren’t going to treat you as a serious candidate. You aren’t the only one who wants to work in their underwear. In fact, the competition online is likely higher than it is in your local area.