Pokemon Ultra Sun corrupted save

[Jose64G]

So, a couple of years ago, my save file of Pokemon Ultra Sun randomly got corrupted I believe right after using the GTS and receiving I think a Venusaur or Blastoise, not fully sure. Upon the GTS trade happening, the game crashed showing me I think a godmode 9 failure, and when I tried to open up the game again, it told me my save file was corrupted. I was stupid and didn't think to backup my saves every now and then, and especially it didn't occur to me to try to regain my save file until many years later when I came back to the Pokemon scene. I have some valuable pokemon here and there, but the ones that matter most to me are my team members and my og team I transferred from Sun including my mystery gift mythicals. I have about over 1000 hours of progress, maybe even more as I would play it every single day when I was younger. The save does mean a lot to me, so I would love to know if it's possible to restore the save data, or if I'm out of luck and have no choice but to restart from the very beginning with nothing. I attached my save file that pksm extracted, but it doesn't work with pkhex due to being corrupted from my testing. Any help would be greatly appreciated, even if it's bad news only.

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Edited 1 hour ago by Jose64G