Weird situation with a girl from school.?

When a person is torn between two choices, there's always one choice that pops in your head more than the other one. For example, I have to choose between going to my dream college which doesn't offer a major for the career I want, or my second choice college which does offer a major for the career I want. But whenever I think about it and try to make a decision, I notice that I always end up choosing the dream college and that the reason why it's so hard is because I keep trying to find reasons why it's not a good choice for me. The point is, deep down you know what you should do, you just have to stop arguing with yourself and just do it.