How can i do more selling?


i do work on fiverr from april 2015 i am working full time on fiverr this is my profile
i consistently get positive review and rating from last 60 review only one 4 star and two 4.5 star other all are 5 star so my work is good as well as client satisfied from my work
i show some seller got lot’s of review so they sell lot’s of things less time then me
how can i increase selling as well as revenue?