Boost SaaS Sales to $300K

I run a direct-to-consumer SaaS that lives exclusively on our own website, and I need to scale monthly sales to US $300,000 and keep them there. The offer is ready, the product is stable, and payment processing... (Budget: $250 - $750 USD, Jobs: Digital Marketing, Email Marketing, Facebook Marketing, Google Ads, Internet Marketing, Sales, Search Engine Marketing, SEO)