I decided not to be in my program anymore at school.
Why aren't you in your program?
I decided it wasn't suitable for me anymore. I started in 2009, I dropped it in 2012
It's fine that you aren't in your program anymore, as sometimes we lose interest in things that we once enjoyed. You shouldn't force yourself to stick to things if you don't like them anymore.
I'm only mad because leaving that program means I now can't be a dentist and make $30000/month.
There is nothing wrong with changing your mind. It is not all about the money. If you aren't happy doing something then money is not going to make it any better for you.