[~Misguided Ghosts~]

Definitely change your major if you don't like what you've selected! Quite a few of my friends changed their majors when they were in college. It's not worth being miserable stuck with a major that you decided that you don't like. If you feel a calling towards something else, go with that instead. Normally when we go to college we're going to study something we want to use for the rest of our lives, so pick the thing that you think you'd get the most benefit and joy out of instead of staying miserable. When you change majors, if you've taken enough classes you might have enough credits to earn a minor in the original program, but that's not always the case. Some of the credits may count for your elective or general education requirements too, but again it depends on the program.