Switching Therapists

I started therapy 3 1/2 years ago, and I was with the same therapist the whole time. We built a great relationship and she guided me through a lot of things and I saw huge progression. We got along really really well.

Recently, she took a job in a different county and I had to transfer therapists. Today, I had my first appointment with my new therapist and it was… uncomfortable. She was pretty robotic and it felt like she was trying a little too hard to build rapport and it was just awkward. I know it was only the first appointment, but I walked out of that room feeling extremely uncomfortable and anxious.

How long should I give it before making another switch?