Access internal SSD different user

Last update. I weirdly/ randomly found a solution (and am still confused about the whole thing). I was searching for a file on an external HDD, and it showed a similarly named file on the internal (inaccessible) SSD, with my normal username etc. None of this has been visible/ accessible even with view hidden files turned on, but I was able to access everything, delete a bunch of stuff and reinstall the OSX and now completely back to normal.

This is clearly an strange glitch and exactly what I suspected, no damage whatsoever to the SSD and I’m very glad I didn’t wipe it start over when the solution was so simple (and strange).

Thanks, yes I know how to erase the disk and do a clean reinstall, that’s what I’m trying to avoid. I’m currently running off that same SSD, there are no problems with the disk itself just that I can’t access the files to delete/ move to free up space and reinstall the boot system. I guess target disk mode seems like the best solution, just no access to another MacBook at the moment. Thanks.

It seems crazy to me that there is no way to access the original drive but everything I’ve found seems to indicate that. Also not exactly sure why it went ahead with the update in the first place, it will usually stop the update if the disk is too full.

Thank you. Maybe I was unclear, but as I said I am (currently) using the SSD with no problems, just that I cannot access my files/ user account. I’ve done reformatting and reinstall on corrupted drives in the past, so I know how do that, basically that’s what I would rather not do if possible because the problem seems to be just that the drive was too full. I want to delete files on it and try an OSX install, but it seems that is not possible.

So basically, I would need access/ use of a separate Mac computer and a new internal SSD/HDD to do this though? There’s no other way do it using a single MacBook?