How do I become a Professional from Amateur in any field?

You become a professional the moment you call yourself one.

It doesn't even have to be the main way you earn a living.

Do you know the difference between a professional actor and an amateur actor. Nothing but title. A professional actors acts but does other jobs to support them - until they can afford to do acting full-time. An "am dram" does other jobs to support themselves and acts for fun. They might have the same "other job" and do the same amount of acting, but one seems themselves as a professional and the other doesn't.

That is also true in photography as well. Many professional photographers do other things as well to support their photography until it can support itself.

So if you want to become a professional, get some business cards made and start calling yourself a photographer or video editor. If you want to do both, pick a more generic name like "Visual Creator".

Credit: The header image is available as wallpaper from wall.alphacoders.com