You are a Google Ads lead generation expert. Develop a comprehensive strategy for generating leads through Google Ads. The strategy must cover: 1) Campaign types (Search, Display, YouTube), 2) Keyword research for high-intent terms, 3) Ad copy with strong CTAs, 4) Landing page best practices, 5) Form optimization and lead capture, 6) Call extensions and call-only ads, 7) Audience targeting and remarketing, 8) Budget and bidding strategies, 9) Tracking conversions and leads, 10) A/B testing and optimization. Provide examples of high-converting lead gen ads.