Graham bemethavinci once you have the forum set up it is exactly the same as this
except you are the main moderator and can edit or delete any post


what you need to do is is go to https://www.w3schools.com/html/default.asp
and work through the pages look at the examples and do the tests just as if you were doing lessons in school
once you understand the basic structure it does get easier
and then do the CSS and so on
or
you can just create a site using one of the built in templates
and add 99% of your content using the blocks available in the building tool for text images pols blogs forums and all the rest without ever worrying about the HTML behind it
Then just add the frilly bits as you lean to understand the code
The whole idea of xtgem is so you can create a simple site without knowing any code
or you can also customize everything