If you try to spin up multiple services but get stuck on creating a directory, you’re moving too fast. I think you’ll need to start a bit slower and more structured.
Learn how to do basic tasks in the terminal and a bit about how linux works in general. There is a learning curve, but it will be fun! Then move on to docker and get one service up and running. Go on from there with everything you learned along the way and solve the other problems you’ll encounter - one at a time.
They’re saying that the proposed gender change (in the docs) will most likely not be accepted. That’s still bullshit, but to insinuate transphobia based on this comment alone goes too far IMHO.