I never gave those dumb personality tests any consideration when it came to specialty choices. If you're interested in a specialty, find a mentor, and then see if you can get exposure to it in your 3rd year. A stupid personality test will not tell you anything about what specialty is right for you.
Myers Briggs is a money making machine and not much more. It's not science. The last time this was inflicted on me, my group assigned each of us a personality type and bet whether we could nail it. Way more fun than actually participating.