You will forget how to use Neocities. To add a new page, click the plus sign in the site editor, type in the name of the new page and then add '.html'. You can then link to it with
The internet of the 90s was not very good for sharing files but is extremely good at sharing text. For this reason, a good way of sharing text might be to cut and paste it into a page made in the Library directory.
Don't forget that you can also make html pages viewable in Neocities directly that can be viewed via the editor rather than posted online.
If you want 90s internet style gifs then GifCities is the place to go, but it is blocked on work networks.