I think I know what she's trying to say.
The problem is Your First 2D Game is not a beginner-friendly tutorial, it's intended more for people with some experience with coding.
If you are a beginner coder, it may be best to look for tutorials elsewhere.
With that being said, if you think you need something more basic, let me also recommend this site that I often recommend to people. The tutorials here are intended for kids, which means they are very beginner friendly as well. :)
https://kidscancode.org/godot_recipes/g101/
Now, here's the good news. It may not seem like a lot, but each game you build is like a brick- it won't be a big, glamorous thing, but it is a new piece of a skill that you can use to build on, even the ones that still have bugs.
How?
Take this one you're working on, for instance. You already have a game, albeit one that isn't finished, that has a fully functional joystick. You can now look back at the code for the joystick and implement it into a new game.
As you build more games, you will gain the skill to do more things, and your games will become more advanced, and far less buggy.
Why less buggy?
Over time, you will also learn to squash those bugs as though you slapped them with a flyswatter! =)