Professionals practice until they can't make a mistake anymore.
Being a professional doesn't cost you any more money or any more time. It doesn't require you to have more experience, better education, more famous teacher, or being born in a more privileged country. And it certainly doesn't require you to be more talented or start at the age of 5.
Being a professional is an attitude. The only thing you have to do is to decide to push through and get to the other side. You can choose to be a pro.
Today. Tomorrow. And the day after that.