One of the main reasons you cannot find your website on Google might be that your website has been launched very recently. It may take from 4 days to 6 months for a site to be crawled by Google. You can read more about it here.
The quickest and simplest way to find out if your website has been indexed is to search site:yourdomain.com in Google.
There are some tips on how to speed it up - you can find them here 🚀