You are going to scratch your head and be frustrated. Just keep going! Imagine your asking "I want to make a rock song that is better than the other rock songs. What youtube video can I watch to learn how to play the guitar?"
I usually recommend GDQuest on YouTube. Just start! Keep going! You'll figure it out.
Start with something small/easy to get the basic concepts and just keep going from there, like you'd do with any other skill. Making a Flappy Bird clone (for example) has become the Hello World of game programming.
I usually recommend GDQuest on YouTube. Just start! Keep going! You'll figure it out.