Another thought;

Many times it takes more than one attempt to find the therapist who 'fits'. Not all therapists are made the same. Where I live, they have to undergo therapy themselves before they can be licensed. Even so, personality differences exist; what works for one may not work for another. So if you have a bad vibe off a therapist; maybe they remind you too much of where your trauma came from; well, you're not going to share. And it's tough to invest even a session or two and then have to break off and try to start again, especially if you didn't want to go to counseling to start with...