There are few people that can give you an idea to make you fall off your chair, and it's worth listening to 10,000 bad ideas to find someone with one good idea that can be executed, without actually causing you to execute yourself in the process.

You can learn to code on your own, but it will probably take you a lot longer then going and hiring a tutor or even just taking a class. This "Teach yourself whatever the hell you want on Google" advice is about the worst advice I have ever read. I guess I could tell my cousin that he can teach himself how to be a doctor by watching Youtube videos and playing Operation, But I wouldn't let him be my doctor.