How do I find a college that is a good match for the career I want?

http://www.helpguide.org/life/finding_career.htm
http://www.careerkey.org/asp/education_options/choose_college_major.html
http://www.bestcollegematch.com/
What I found in this research is the following to choose a career you have to be sure that you want that career, if not you will spend the rest of your life regretting. Also in this research I found out that there are colleges that are more specialized in subject that other colleges. Therefore you should explore the possibilities of the careers you have in mind. Also don't enter the career you most make money if you don't like that. Before choosing also volunteer in a career you are interested to see  if you  enjoy working there or Not.
Question:
Can you quit a career?