There are actually some good tips on the forum, especially for new sellers and how to get your first sale.
I’ll mention a couple of them here that I can think of.
-Offer unique services but make sure that there is demand for it.
-Bid on projects in Buyer Request section with attractive briefs describing your services. (Read the projects carefully and don’t bid blindly)
-Make sure your communication is flawless.
-Keep working on your gigs and improving them, make them look as attractive and professional as possible.
-Don’t stress too much and try to have fun!
good luck once again!