@JohnFromGWN So it turns out I deleted the wrong folder in my documents before that's why my cloud save, which is in a different folder, is still there.

As you've instructed, I deleted the cloudsavedata.dat and when I started the game it asked if I want to enable cloud save so I chose not right now. Just to be completely safe, I did what @WGotch07 said about disabling cloud save in-game and to my relief... it was a success. I don't mind starting the game anew at all so long as I could play it again.

Thank you both @JohnFromGWN and @WGotch07! Cheers!

@JohnFromGWN Hi, I checked your post before posting my own btw so sorry if I missed something in it.

My game in a complete vanilla mode as you call it never worked. The very first time I installed the game in 3 months, my mods folder was still inside my GTA main directory, so the very first time I started the game and it didn't work I immediately thought the mods folder was main culprit so I just deleted the entire thing. I restarted the game but it still does the same thing.

So I thought of just reinstalling the game. After that, I did the verify integrity of game files and started the game - nothing.

I also thought it might be a corrupt saved game file, but I never knew how to start completely new? So I just deleted my save files in my documents and restarted the game but it still didn't work probably because of cloud save and I don't know how to completely disable cloud save.

I still think the saved game file might be the cause because I might have missed a thing or two when it comes to the file structures when modding 3 months ago.

My HDD space was indeed in red so I deleted some stuffs to be on the blue side again but it still didn't work.

My system definitely meets the min requirements and I've recently updated my graphics card.

Going back 2-3 months ago, I had at most 3 gb worth of mods installed and I decided to uninstall the game since I ran out of space at the time. Last week I decided to reinstall it and started the game but it crashed few mins after loading up story mode. No any weird error messages -- the game just full on closed and went back to my desktop.

First thing I thought was definitely the mods folder I kept must have been outdated but I couldn't be bothered so I just deleted the entire mod folder and restarted the game but it didn't work. So I uninstalled, reinstalled, then verify integrity of game files via steam and finally restarted the game - still not working.

I tried finding some fixes, and downloaded mods that could possibly fix the issue like Heap Limit Adjuster, Gameconfig, Packfile Limit Adjuster, Script Hook V, and Community Script Hook V .NET.

I don't know what necessary information to provide but here goes: I have Microsoft Visual C++ 2005, 2008, 2010 (x64, x86), 2012 (x64, x86), 2013 (x64, x86), 2015-2019 (x64, x86), and my DirectX is up to date which version 12. I already updated my graphics card as well.

My PC:
Processor: AMD Ryzen 3 3200G with Radeon Vega Graphics, 3.60 GHz
Installed RAM: 8.00 GB (5.95 GB usable)

If I'm missing any necessary information, please let me know and I'll do my best to answer.