I keep being too tired to post end-of-day updates and just crashing, but I've finished a tutorial series that's my favorite I've found, and I'm about to cross my fingers and create what I hope to be the last project file I'll need. I followed along and got pretty good feeling movement, jumping, wall jumping, and even some starter animation experience in a demo project, and I've got a much better grasp of how scripting works now and what different variables do. I'll still have my main mechanic to figure out on my own, but I think I have a decent idea how to do that already.
Unfortunately I won't have much more time to work tonight, and I'm three days behind my plan, but I'm feeling a lot more capable in Unity, so that's something. Also, all the setbacks and watching other people's work on here and the discord has given me an idea of something to change with my game, and I think it'll be a lot cooler and more unique without much more time or work, so I'm even kind of happy about that in a way.
Back to it!
EDIT:
Okay, end of day three! Got my project file up and running, a placeholder player sprite and environment tiles, horizontal movement, and a starter jump with ground checking. If you're following along that puts me...two days behind schedule. But! I'm excited all the same. Check it out (gif in no way representative of what the game will look like or play like lol):