Yes therapists are like shoes. Sometimes you need to try a few, and I can see why most therapists don't say this (Because there are some bobo shoes) but they really ought to.
You absolutely 100% do not need a full year, agreed. The therapists should being a form of therapy such as EMDR, or being teaching skills very quickly after your initial appointment.
If all they ask is 'How is your day' with no plan to graduate you, or moved to a lower contact situation - they probably aren't very good therapists