Over and over again, research finds that the effectiveness of therapy has little to do with the type of intervention used or the credentials of the practitioner. It has more to do with the quality and traits of the relationship between the counselor and client. That is why it is so important to find a counselor who is healthy and can relate to you in a curative way.
Here is a link to one person's thoughts regarding how to choose a therapist. While I don't agree with every point he makes, in general, I think he gives some sound guidance about the process of finding a counselor. Beyond what is written there, I advise you to choose a person with whom you feel a resonance and whom you trust is at peace with herself. If the therapist seems somehow argumentative, defensive, or self-promoting, these are danger signals.