Sorry for the late reply, but what you do is you can search up "journal skin" on the search bar or go to this link:
www.deviantart.com/darelated/d…
Then you click on one of the skins and below it, there should be a button that says "install journal skin". Once in stalled, go back to your journal and on the right hand side of the
"Write Jounral" page, there should be a box with all installed skins. Pick on and just write.
Thing is, I currently have trouble finding the "Install" button myself....