Welcome to Fiverr!
A quick tip from me: You can add your Fiverr URL through profile settings, so that forum members would be able to find you on Fiverr.com by clicking on your profile icon!
You need to find a market
Promote your gig on social media networks
Use social media network promotions on the fiverr account
Send the buyer request 10
Since this is a competitive market, you should try to build it proficiently and try to increase your sales
Stay with the account whenever possible
Read fiverr Terms of Service
Read the forum’s rules
Read the hints of the forum
There are so many tips you need https://forum.fiverr.com/c/Fiverr-Tips/tips-for-sellers