well i learned using YouTube and mostly experiences . brackeys videos are bit of old so not fully learn from him , but learn from mix of people (code monkey , speed tutor and many more ), read unity e books and documentation how to use Api , finish some small projects , try to upgrade and polish the game that you have made and clear bugs , if you dont have time to watch youtube vedios use chatgpt , copilot and gemini to learn , specially you can send gemini to youtube vedio and he fully explains the vedio , experiences will you make a better game dev