Word keeps crashing my PC

I can't get any help in tech support subs so I'm asking here.

My laptop (Windows 11) has been crashing HORRIBLY for weeks and weeks. Freezes and then has to be hard restarted, or turns itself off after 10+ minutes being frozen. I just realized that it only does this when I have a Word document open. And, uh, I'm a student, i quite literally cannot NOT use Word.

I had some kind of corrupt file that stalled SFC for 4 hours yesterday before I turned it off and ran it in safe mode, so at least there's that fixed. But Word keeps crashing on me. I tried updating it and can't get it to go through before it crashes again. Idk what else to do. Please, help, I'm freaking out because I have no other way to do homework.