Can I drop/switch trades?

Your character may switch trades. Remember, you can have up to two trades and three specialties. Let's say Grace is a Hunter and Mercenary but you would like for her to be a Caregiver. You must give up either Hunter or Mercenary (and all specialties earned within) in order to pursue Caregiver.

I hope that example makes sense. Please let me know if you any further questions on the subject. :)