It depends what you want to do. Game development has positions for all roles, including the obvious like programmers, artists, designers, writers, music producers, etc. but also just about everything else from community managers, lawyers, accountants, marketing, PR, HR, QA, customer support, etc. So you could gain expertise in just about any discipline and still work in games.
Starting out, you might not land a job at a big company, so you'll probably need to start with making indie games to at least gain some experience. This will mean learning many disciplines yourself, but hopefully finding which one you like the most and want to focus on. It will also build your portfolio so you can land your first job (or maybe make a hit indie game and not need a traditional job).
In terms of education, there are many colleges that have game development degrees these days, but I would recommend going for a more general degree so you leave your options open. So if you want to be a programmer, go for Computer Science. This holds a lot more weight than a game dev degree, also if you want to transition to a normal job later (like working for a tech company, in finance, etc.) then the Computer Science degree will be better. If you want to do art, just go to an art school (though I did go to art school years ago, and the degree is not worth much. Artists are judged on their portfolio almost exclusively).
But before you consider an expensive college degree (which is less relevant these days) maybe read some books to see if it is even something you want to do. There is a big difference between playing games and making games. I would recommend books specifically because they seem to be more educational than YouTube tutorials, for example. Then build some simple games (like Pong, Tetris, Breakout, Asteroids, etc.) and see if it's something you enjoy. Also, Godot is the best engine for learning how to make games, so you made a good choice coming here. Cheers, and good luck!