First of all make sure you offer something more from your competitor sellers in your field of expertise.
Secondly, make sure your gigs are optimized (using correct grammar, syntax, videos, good quality images and if you have a portfolio of your preview works that is even better. )
After that, promote your gigs outside Fiverr using all social media platforms you have like Facebook, Twitter e.t.c.
When someone contacts you try to answer him as soon as possible and have a quality conversation with him, explaining everything he needs.
If a client forgets to review your work don’t hesitate to ask him kindly to do it.
Of course, everything I mentioned so far, can’t guarantee every day work but I believe it will make a difference in your orders overall.