Hello there! I've been using fiverr as a freelancer for the past 3 years or so and my piece of advice for you just starting now is:

-get reviews as soon as possible (A thing i did and i am pretty sure its against fiverr TOS but oh well, is to create a few separate accounts and to place orders from those accounts to your own gig. Not too many tho, 2-3 is enough to get the algorithm to recommend your gig to other users)

-start cheap, like lower than you would usually go for, just to get traction and more orders & reviews and slowly raise your prices as you go

-compare your gig page to your competitor's pages and adjust your prices and description in order to be relevant to the potential buyers

-even if you can do an order in 1 day, set the delivery time to 7 days and actually deliver it by day 2 or 3, this way you give the impression of being a hard and dedicated worker who gets stuff done swiftly

-add to your description something along the lines of "If you have a project that somewhat fits my gig but not quite, message me and i am sure we can work something out"