Hi April! Welcome and have a look here to get your gig/s up:
Creating a Gig (relevant article from Fiverr’s Help Center, side-menu there has other things you need to know sooner or later, better to read it all sooner though, as it can help avoid messy situations.
And for much more info and important stuff:
There´s lots more, like a blog, podcasts,… but you´ll discover all those things when you browse and click and read the forum. Much fun and success!
edited to add, because important: no personal email contacts, all communication has to happen within Fiverr´s order page/inbox, you´ll see that in the ToS, it´s really important, as it can lead to account suspension. In case your gigs offer a service for which some kind of exchange of personal contact details/off-Fiverr contact is really needed, clear that, in advance (!), with Fiverr Customer Support.