OK, so you went and used Word because you didn't know any better

and now you need to salvage what you have rather than starting over (because you're running out of runway). I haven't used Word myself to build a site, but I've seen the innards of sites built with Word or Publisher, and they are
ugly.
So, you've edited a page or two with Word, and haven't tried manually editing the code? Hopefully you started with "blank web page" and saved the result as an .htm file.
Make sure your filenames have NO blanks or other oddball characters in them. You should re-do them (and update the associated links) if you did. Did you get this far? The next step is to find all the files you just created in this project and upload them to the server. Assuming you're on a Basic plan (Linux) server, you can use any FTP client (should you already have one) or you can use the file upload function in cPanel > File Manager. For File Manager, navigate to the
public_html directory by clicking on the folder icon (not the directory name). There will likely be a file called "index.html" which is the Lunarpages default "welcome" page. You'll need to upload all the files you created, keeping them in the same relative structure. If any subdirectories were created in your project, you will of course need to create them with the same name, and upload the appropriate files into them.
I already mentioned that Linux doesn't like Windows-style file names with blanks and strange characters in them (anything but A-Z, a-z, 0-9, _, and period (.)). Make sure your filenames and the names given in links match, and be aware that case matters (Index.htm is not the same file as index.htm). Finally, if a visitor just gives your domain name or a directory name on your site, the server will look for files in the following order: index.html, index.htm, and finally index.php. First, you have to get rid of the existing index.html. Go into cPanel > File Manager and navigate to
public_html. Click on the "index.html" name and choose the option to rename it. Change the name to "index.html.default" or something like that. If you created your Home page as "index.htm" or "index.html", you're done. Otherwise, you have to tell the system to go to your Home page. One way is to redirect from a dummy index file:
public_html/index.html<html>
<head>
<meta http-equiv="refresh" content="0; url=my_home_page.htm" />
<title>Redirect to Home Page</title>
</head>
<body>
<p>You should be taken immediately to my Home Page. If you aren't, click <a href="my_home_page.htm">here</a>
to be transferred.</p>
</body>
</html>
Another way would be to add the following line to your
public_html/.htaccess file:
DirectoryIndex my_home_page.htm index.html index.htm index.php
Hopefully that should get your page up and running...