Somebody out there did it first, that means to say, he or she did it without any guidance.
It’s so easy to learn something today. We have Google. We have tutorials and whatever. It makes people think that they need the help. It makes people think that things must be perfect. But that is honestly a lie.
Just try it yourself first. You’ll be surprised how easy it is and hence how capable you are. Don’t hesitate. If we always need help, people can’t invent things.