Go to your cPanel in Bluehost.
Click on WordPress in the Site Builders menu and then follow through the directions.
In the next step, you tell them where to install WordPress and what name you want to give your site.
If after you submit the page you get a warning about the directory already existing and data being overwritten like so:
That’s OK. Just go ahead and resubmit the form.
When that’s done, you’ll be shown your WordPress admin url, your login, and your password. Save this information in your password manager or some other secure location.
Your site now has WordPress on it so you probably want to install your theme.