We should not recommend a last resort solution before trying the official installation process.
Lucy am not a programmer[newbies in the online world] . please can someone break the installation process down little.
Having some programming skills wil help you to customize your forum, but these are not required to install Flarum itself. The installing process is, however, a little different from many other web softwares as the official installation process (which is recommended) requires connecting to your webspace via a console window. This access is called SSH.
@andreherberth pointed into the right direction, contact your host and ask for SSH access. The next step will be to use Composer. It's either installed already (to find out type composer
in the console window after establishing a SSH connection to your webspace) or it can be installed via the console.
Once Composer is available follow the instructions to install Flarum.
Like @andreherberth I have no experience with bluehost, but I guess you have a good chance to install Flarum the recommended way. Pockethold might be easier in the short run, but having Composer at hand will make your life much easier in the future once you want to install extensions or update parts of the software for example.