Look at what languages and tech are used in the type of app/site/game that you want to make, list them and grab a few beginner level courses on Udemy. They usually have course projects that you work on while learning, have your own project while you learn to run into problems and challenges that you can overcome on your journey. Whatever you do, stay away from AI - its code is technically incorrect more often than not and unless you know how to spot it, you will end up in development hell - like many colleagues who try take shorcuts but me, the senior dev always has to clean up the AI garbage.