To get more visitors and clients using your site, you will need to actively promote it. Unfortunately, it is true that it takes work and time to promote your site and get visitors to it. You would need to add it to online business directories, and promote it regularly on all social media. It is a bit like a front store, some people will come across randomly, but in most cases you need to make it aware to them or even give them a reason to come inside. Does that make sense?
Related questions:
> No one contacted me from it so far
> No one was visiting the website