Hey there,
Looking at the details of your project page, it says it was published 2 hours ago. It usually takes a day or two for a project to be indexed and visible while searching. This can take a bit longer during weekends/bank holidays or if this is your first paid project.
As you noted yourself, your project is public and purchasable, and you can post about it on other social media.
Hope that helps, congrats on the new project :)