If your domain is your address, hosting is like the actual house within which your site will live. It's your own little slice of the internet — the place where all your website files live. Hosting is very affordable these days, so don't unnecessarily scrimp on costs. Go with a reputable, reliable provider because your affiliate marketing business depends on it.
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. 
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Similar to a YouTube vlogger, if you have a large following on Instagram then you could become an Instagram Influencer. You will be paid to promote products in your photos, from wearing certain clothes to action shots of you using particular merchandise. As your Instagram following grows, you may start out simply receiving freebies in return for a picture of you with the item in the shot. However, for those with followings running into millions, you can expect large payments to display products in your pictures. Use sites like Hype Factory to help connect you with companies prepared to pay for your influence.
Use your personal words & experience with the product. Your own content, or photos & videos of yourself using the product are always the most effective. For example, many affiliate programs provide swipe copy to their affiliates which is pre-written emails, post material or social media posts. These can be helpful as a guide, but they often scream swipe copy, aren’t written in your voice (the one your readers know!) and if a lot of affiliates are using it, are overdone.