Welcome to the forum. You can only withdraw money that’s displayed under “Available for Withdrawal”. Your Revenue goes into “Clearing” for 14 days (some kind of a security period) and after that, you’ll see it as “Available for Withdrawal”.
As you’re new, it would be a good idea to check out the articles in Fiverr’s Seller Help Center, you can find a lot of info there that will answer questions of a more technical kind and that might even help you to avoid issues that might arise later.
And congrats on having gotten orders so soon!
Oh, or did you mean your revenue is past the 14/15 days clearing period and yet didn’t appear as available for withdrawal? In that case, you’ll need to ask support. There’s a Contact Us button on the Seller Help Center page I linked.