First things first, welcome. I believe you know your stuff well, and Fiverr is glad to have you here.
The first thing I would like you to know is that Fiverr is just like opening a business. While some people might come around and see what you’re selling, get interested and make a purchase, all that is based on beating the odds, especially in a competitive niche.
I would advise that you jump on the buyers request page and send beautifully-crafted quotes to potential buyers. Take time out to read their needs, understand it, then send a quote accordingly. Maintain your professionalism all through and keep firing on all cylinders.
Sales might be slow, but don’t let that get to you. I got my first sale after 10 days myself, so I might know something about the wait.
Probably, the first thing I should have suggested to you is the Fiverr Academy. They have given you all the tools for success in there. Good thing you joined the forums early. Whenever you’re not busy, check out the posts here to stay on top of your business. I wish you the very luck.