Anxiety about therapist

So, I wrote about my problem on another app for support and some therapist wrote a comment and I feel calm about them but little bit anxious... I don't know what to do actually... I want to talk to them but I'm scared that they will be really bad at support and at help in general... I have a therapist already but I feel really anxious and really scared about them, I feel really numb and they make me feel really bad mentally and I don't know how to describe it, but that one therapist that wrote to me makes me feel calm and really relaxed, like, the anxiety about my problem are vanishing away because of them, but I have a little bit of a fear that they might be bad, but I feel more scared and anxious about my current therapist so... Maybe I can write to that one therapist that makes me feel calm? Because maybe they will actually help me and maybe we can make a good match?