Should I go for a full time job or chase the dream?

Im 23, about to turn 24 and for the first time, I finally realized what I want to do in my life. Its something I loved for so long, im both a nerd and a worshipper about it. I wanted to pursue a career in MMA( Mixed Martial Arts). I havent started training in it yet but I have been hitting the gym and putting in the work for a month and a half now. I've been learning and pushing myself deeper into discipline just dieting and working out hard. I can do 50 pushups and my anxiety is improving

But I've been working for Amazon for 3 years. The pay is not bad($21.60) but I work on average about 25-28 hours a week. I make enough money to survive. I'm also closing in on an associates degree in digital media, in which I need to take 3 more classes. But my dad tells me from time to time to get a full time job but its like, I dont want to.

I've been majoring for 6 years with digital media and to be honest, it doesnt thrill me as much as being a fighter. I know fighting is dangerous but Ive loved it all my life. Its just, I underestimated my physical capabilities and given the fact that ive been working in the warehouse industry for 5 years and being one of the best, I have a lot of confidence in what I could do with my physical gifts.

But I wanted to know, was it worth getting a full time or was it worth chasing the dream?