I took only AP Psych, but I enjoyed it. What do you wish to do in psychology? If you go the pre-med route, you can be a psychiatrist. If you get a PhD, you can be a psychologist. If you get much less than a doctorate, you can work at the local Denny's (psychology is one of the most popular majors, and a BS or BA in psychology isn't seen as a big deal). Depending on what area of psychology you go into, lack of empathy could be a problem, but I doubt it would be so great as to prevent you entering that career field.
I take it you're more interested in psych than in biochem, since you just asked about psychology? If you're really considering both of them, either double major or major in one with a minor in the other so you have more options open to you when you start looking at grad school.
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