If you are using "game engine" in the industry standard way, you would want to learn object oriented programming first, then learn how to use an existing game engine, and then MAYBE, in a long time, with a big team, build your own game engine.

ChatGPT as a programming tool like any other tool works a whole lot better when you are well versed in how the process should go. It speeds up the workflow of a professional, it doesn't make a new worker better.