lol - you're definitely not a pebble, you're climbing the VR mountain with me my friend!
It may surprise you, but I don't use GIT or anything either! (shocker, I know) - I find it slows down the development progress rather than improve it. Basically, all you need is to take regular back ups of the project's assets (usually just the scripts) and that's enough if you ever revert back to a working version if you get into a mess.
Thanks for explaining the level process and where it was going to go... Yeah, I get it now, if there was an extra, super high level you jump off after travelling up on a elevator (oh, that sounds familiar ;) ) then the difficulty ramp up makes more sense. Shame that didn't go in, I would've like to have seen that.
Still, it's a really super polished and fun game regardless, it's close to being release ready. I reckon with a bit more work you could probably make that a full game release.