Check out some more vids, but if you get a chance train at your local gym. They usually offer free trials. If you enjoy it continue for a few months or so. Within that time frame you'll gain a better perspective on the training regimen that goes on with recreational fighters then times that by 10 and you'll see how much work gets put into training alone for pros. Luck is still an element in any sport, but over the long term it is skills that differentiate from the lower to higher tiered fighters.
I consider it an art form when mastered. If you think about it, fighting in it's purest form is chaotic. It's now become sanctioned with referees and you see practitioners who have trained all their lives putting on shows.
Marcus Aurelius: Tell me again, Maximus, why are we here?
Maximus: For the glory of the Empire, sire.
Baked, not fried... the healthy choice.