Also please don't try this without knowing what you're doing. I really did delete my entire game and, in GameMaker, that is permanent. I only did this because I had source control set up and knew how to use it. And, even though I was confident it would work, it was still anxiety inducing the first time I did it. And I worked up to it with smaller deletions first. So please don't try anything like this without first setting up source control and learning how to use it first. Or just don't try it at all. Why would you want to delete your game? But do try source control. It's great.
The way you organize your project folders looks a lot cleaner than the default setup. Would you ever consider doing a video on how you handle project organization for GameMaker?
Because none does. You can hook up git to GameMaker and use it from inside the IDE, or at least you could, but it's still git and for the most part it's just a worse interface that is significantly less powerful and useful than either the command line or a GUI interface.
