Dont do it, it is not advisable to purchase your own gig on Fiverr or any other online marketplace to increase your ranking. This is because it goes against the terms of service of Fiverr, and it can lead to serious consequences such as account suspension or termination.
Fiverr's algorithm for ranking gigs is based on several factors, including the number of positive reviews, completion rate, response rate, delivery time, and overall customer satisfaction. To improve your ranking, you should focus on providing high-quality services, delivering on time, and maintaining good communication with your customers. You can also promote your gig on social media and other online platforms to increase its visibility.
Purchasing your own gig might temporarily boost your ranking, but it can harm your credibility in the long run and could potentially cause Fiverr to take action against your account. It's best to build your reputation on Fiverr by providing excellent service and following their terms of service.