i was trying to make an anvil yesterday . i did some sculpting .today i saw this . i don’t have a backup. how did this happen ?
blender does sometimes keep autosaves. Top left go to file, recover, autosave, then sort the files by recent date, and start digging. If nothing then I am afraid you may be SOL. Sculpting is an inherently destructive process
Another option would be to check the blend1 file, which is an alternate form of backup.
I’m guessing you used Dyntopo after you’d UV mapped? Dyntopo destroys UVs.