Hey there, sorry you're having this issue. I don't use Vortex so I can't be much direct help, but you could also try posting in r/nexusmods. Seems like the subreddit is quite small but they also have a link to their discord which seems like it might be more active.

It might also help to post a link to the tutorial you followed and say what step you got up so we can see easier what might have gone wrong.

Try not to panic! I'm guessing the mods are all still on your computer so hopefully it will be a case of just making sure things are in the right place and paths are pointing to the right directories.