Optimize 8 Google Ads Listings

I have eight individual Google Ads service listings that need a careful, data-driven tune-up so they start delivering real sales instead of just clicks. Each listing is already live, but performance is uneven, no calls and cost-per-conversion is climbing... (Budget: ₹1500 - ₹12500 INR, Jobs: A/B Testing, Data Analysis, Digital Marketing, Google Ads, Google Adwords, Google Analytics, Internet Marketing, Keyword Research, Marketing Strategy, Search Engine Marketing)