Digital Marketing Ads Facebook and Instagram -- 2

Our store are selling Home & Garden, I am looking for a professional optimization who can help me run Facebook ads with an effective way. I am having a project distribution expansion for a company in US market. The project that I would like to do will lost a lot of cost so I need to find another Marketing Agency and make sure they can ensure. the project will be efficient. My budgets everyday can reach from $3000 to $5000. However, I am finding some of it to show an ideas fo the campaign. I've paid a lot of money for the Marketing Agency but it is not effective and wrong target.