When it comes to Google Ads, Clicks are the number of clicks on your ad. Whereas Conversions are predefined actions on your websites. Clicks can be conversions if your end goal is to just get more clicks on your ad to make them land on your website. If your ad campaign is not working and not giving you conversions, optimize it for clicks. This will be a future gain for you as you can use this traffic in the future to convert them.