Use a Framework, Template and Abstraction
You have to be able to work with something that was NOT originally made by you. You have to be able to build on top of something that is NOT your original idea. You must be able to take something that’s a basic idea and transform it into something much bigger or much smarter. Even if you Don’t understand how that thing works inside itself, you should try to find a way to still use it in your own ideas as long as you have been told what its purpose is. Once you’ve learned what its purpose is and you understand its purpose, it should be clear to you whether you’re gonna need that thing at some point in your own ideas in the future or Not.