Can I make more money working at a Ford dealership or open my own shop?

I'm 19 going to uti automotive doing Ford Fact. I'm thinking about working at a dealership then open a shop specializing in ford Mustangs and doing performance. Is there any money to be made in what I want to do. I also want to buy cars and sell them. Also if anyone recommends trying to work for bmw Mercedes or Volvo let me know.

You are young and inexperienced go to work for someone for a few years then open your own shop