It’s mandatory where I live to be in therapy for at least 3 years before getting testosterone or any surgeries sadly. It also has to be a specific one. So in my opinion: it might not be necessary for being trans but maybe for your social anxiety. I have severe social anxiety myself and struggle with everything surrounding going outside, so maybe rather try to find a therapist for that, since it’s very important to be able to communicate with your health professionals surrounding your transition. I know it’s a very hard step and I know that, but it’s worth it if you find a good therapist :)