Am I crazy for pursuing IB?

Hey all, 

I have one question: Am I acting crazy?

During the past two months, I was accepted to three medical schools. I've been pursuing medical school for the last seven years from 18 to 25, so it's great to finally accomplish a goal. However, when I got the acceptances, I had an epiphany and realized that medicine does not excite me. Maybe it's because I learned way more about the field as I am going through a master's in public health. 

I completed an internship at Haitong in their equity research department, and I really developed a passion for finance. I hope to gain admission to a master's in finance program somewhere in England to pursue an analyst position in IB (see my other post). For reference, I'm an American with a 3.75GPA in biology and 4.0GPA in public health...

I'm not sure if this is what people call burnout...but finance seems like a move in the right direction...

What are your thoughts?

Thanks