One thing that can help is to step back and do some very very basic game programming from scratch first. Make a simple 2d game like pong first. This will give

One thing that can help is to step back and do some very very basic game programming from scratch first. Make a simple 2d game like pong first. This will give you some basic understanding of how to draw pixels on the screen, how to collect input, how to track game states and do a game loop. Once these basic ideas are better understood, you can hop into a game engine and have some context for what the heck is going on. It will make more sense. Get familiar with the fundamentals before hopping into a huge game engine. Also avoid 3d for a while, the introduces so many complications and its hard enough just making a 2d game. A simpler game framework that unity can be used as well, like MonoGame, or Godot, or one of the Python game frameworks.