Google Ads Lead-Gen Setup

I’m looking to turn Google Ads into a steady source of qualified B2C leads for my service-based business. Right now the account is either brand-new or under-performing; in either case it needs a ground-up build that can start producing form fills and phone calls quickly... (Budget: $15 - $25 AUD, Jobs: Conversion Rate Optimization, Google Ads, Google Adwords, Google Analytics, Internet Marketing, Lead Generation, Sales, SEO)