pay per click google ads campaign

I am looking to start a Google Ads campaign with a budget of less than $500 that will help boost product sales. My target audience is a specific demographic. I am looking for a freelancer who can analyze my website and suggest the optimal placement of my ads to achieve my desired goals. Additionally, I need my ad campaign to be tracked and optimized so that I can see the results of my efforts. I am open to any suggestions you may have in order to better reach my chosen demographic and achieve the goal of increasing product sales.