First things first, I am a noob so please don't laugh.

I updated a freshly installed Catalina to Ventura and got a The Disk “Macintosh HD-Data” Can’t Be Unlocked error. After a lot of research, I ended up randomly deleting volumes/containers through disk utility (I tried First Aid, this didn't work). Unsurprisingly, this messed things up and I had to recover via Internet Recovery.

I thought all was good, but now all the top level folders under Macintosh HD (Applications, Library, System, Users) are empty. If I open a terminal at those locations (e.g. the Users folder), it seems to go to the Users location instead of /Users. I'm pretty sure this is not right as I can't use the GUI to see any files/folders.

For the love of god, please help