I think big transitions are scary for most people.

Is it possible that your T meant "how is this fear of looking for a new job different from all your other fears? You've been afraid before and lived through it, you (and many of us) feel fear all the time without having it control you--how is this different?"

Does that seem like the kind of thing your T would say? Not a judgement or criticism of you but a simple observation that fear, while totally understandable, is not in itself a reason to avoid taking steps to make your life better.