PRE 2020 Randomly Exits (After Not Responding)

So I bought Premiere Elements Full License a few months ago, and it was working fine back then, it has always been laggy on my laptop but compared to how it is now, it was fine. I gave editing a break for a few months and came back to it yesterday, and since then it's been a huuuge pain, lagging, crashing, black screen, the most prominent issue that's bugging me right now is that the program won't let me save, every time I save or it auto-saves it freezes the program and then it kind of appears/dissapears on me in quick succession for about 2 full minutes, the brightness makes it dangerous for me as I am prone to dizzyness in siezure-like conditions. And then straight after that the program seemingly dissapears from my taskbar like it was never on in the first place.

I cannot complete a single project right now and it's pretty upsetting because I need to get a commercial project done for halloween.

Any suggestions would be highly appreciated.