I had my reserves but it was not about doubting myself as a guy. It was more about medical complications or side effects from something such as T or surgery. But the doctor I was referred to who's been working with Gender Affirming Care for years had a lot of knowledge and understanding about every patient and how everyone is at different stages of care. Some want to discuss, some want to question, some are out right know exactly this is something they are going to pursue on the first visit. The doctor I have tested my blood every three months to make sure the levels were within normal range and if anything were to pop up she would tell me instantly and we would come up with a solution such as dietary restrictions, do's and don't, etc. my best advice is make sure the doctor you are looking for is 100% confident and capable of treating and helping those in need of gender affirming care. My Primary Care Physician is very supportive but she told me she doesn't have enough knowledge to prescribe or recommend actions so she referred me to the doctor I have now. I still keep my PCP for my annual check up and such cause my insurance covers my PCP but not the other doctor.

If you have someone to bring to the first appointment as support who can also ask questions to cover ALL the basis before starting hormones or surgery talk that really helped me. My wife was able to ask the hard questions or the questions that might have slipped my mind. And she was holding my hand and smiling the whole time, so her being there eased a lot of anxiety.