There’s a reason why the term “content is king” is used so often in marketing. The Internet is, in many ways, just a selection of content. People will not come to you if you do not participate.
One more trick is to sell cheaper products. Earphones will sell easier than mobile phones. Cheaper products have higher conversion and lowest chances of product order cancelations. With more sales, you can earn higher. This is somehow the core concept of Amazon Affiliate Marketing. I sold over 1100 under $9 items this Black Friday. As you are just a blogger and not a celebrity — people can only take your words for $9 to $90 and not for $900. Even if you are a pro-pro-blogger, you’re not IGN or CNET(even these sites fail to sell high), if you are thinking high of yourself.

Marketers often use these networks to find products or services to promote. Also when you join a network, there is a good chance that affiliates come to you automatically instead of you reaching out to them.
An expert in a niche industry? Then maybe a niche-focused model would be better suited. Location-based might be a better choice if languages are your forte.