It will take time for your new website to build a visitor (traffic) base. No website gets instant recognition and numbers, even if you submit the site to the Search Engines (see below) and post (add stuff) daily. Expect to take 6 months before you see any substantial visitor numbers coming in (see below).
Why? Because websites are found by visitors organically at the beginning. That means, visitors come across your site in a keyword search or a link from another site. There are ways to increase traffic fairly quickly, but be prepared to do the work.
Here’s how sites and blogs work: