Heya Mara ;)
Thank you so much for this! The chat we had really helped pick me up from a very low place and has helped me to re-channel my efforts. Knowing where to start looking for the things I feel weakest on is a huge help, especially communities wise (was scary enough just opening up about things on lumiradio).
My current plan is to take of the perceived burdens I've been loading onto myself, and get back to basics. As you said, creating an expected project timeline (though, milestone-line in this case) is one of the first items on my agenda. Once I know that I'm even going to go back and reassess what development environment to work in (GoDot, Unity, or Unreal) as I'll be able to determine the best environment based on example workflows for each bit, and the consistency & ease with which I can follow them.
Am also going to give picrew a proper looksie for the same reasons you mentioned. I've kind of got a crude method of making graphics for games, but they're just that. Crude. Having a "crude" model and a pretty-but-wrong model of the same thing may be quite helpful ^_^.
I had never heard of an AZERTY keyboard before! DVORAK was the limit of my understanding of different to QWERTY keyboards lol. Rest assured though, I have added Q and Z to be left and up appropriately (though, you don't actually need up or down... but figured that saying Arrows or AD would be more confusing than Arrows or WASD). Just as a quick warning, I was partially inspired by Bennet Foddy's "Getting Over It" when making the game lol.
Thank you so much again for the info!