I'm currently working on a model I made in the 'modeling' tab, and went over to sculpting to sculpt it. When I did I couldn't actually make any direct modifications to it, but I (think I) found a way around that via remeshing. Unfortunately when I remeshed the model, it punched a thousand giant holes into it and I've been desperately attempting to patch all of them manually after my attempt to Generate>Solidify didn't work to help clean the mesh up. Any ideas on what I could do to remesh or fix this quickly? Link below is to a google drive dump of my model.
https://drive.google.com/file/d/1xZOL8XeZgprLt1A7rgPtJXzbQgOuXjxS/view?usp=sharing