CTD after saving, even after commiting self-kill fix

Hello! first of all, sorry if my english is not 100% propper... Getting that out of the way, as the title says, my game is crashing every time I try to save the game by any means. I´ve been using the method of exploding my character to bits every time I load a save in order to be able to properly save, and that does the trick, but it does not permanently fix the issue...

I already deleted all the savefiles that had the .temp suffix as suggested in other posts with similar issues... but that didn´t seem to fix this problem.

Is my savefile totally damaged beyong repair or should I just keep finding creative ways to kill my character every time after I load the game?

Thank you!

EDIT: I should add, I have to blow up my character every time I exit the game and launch the game again. I am using FOSE, I have the anniversary patch installed and I have a couple of mods installed such as FWE, MMM and Project Beauty via vortex. I downloaded the game via Epic Games and I had to copy and paste the Fallout3.exe and launcher.exe from a GOG version as well as the xlive.dll since the game wouldn´t open at all prior to that...

I miss this game but it is just such a mess to try to play it on win10...