To get the first order on Fiverr, you need to choose the less competitive keywords and use them in the title and description of the gig. If the competition will be less, the chance to get more orders increases.
Google keyword planner is one of the site where you can search the good keywords and use them in your gigs.
Also, as a newbie it is recommend to share the gig on various social media platforms as well so as to increase the views and orders as well.
Hope it helped!