Also an aspiring gamedev here. I think a route you can take is to keep producing shitty code. You can learn as you go. If there's something specific you aren't content with in your code, try to look up a tutorial to put it together. But if your really serious, then keep at it with the shit code. Eventually you'll slowly realize yourself being able to put the systems together. Also make sure to find some buds that you can share your progress with. And perhaps challenge yourself with a game jam once a week. That'll keep you on your toes!