How do people actually make money Affiliating with Google Ads

I am affiliating PureVPN and google ads costs $3 per click. The conversion rate is like 10%. Obviously I lost my money. How do people actually do it?

submitted by /u/Anatocisms
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source https://www.reddit.com/r/beermoney/comments/h8i8pe/how_do_people_actually_make_money_affiliating/