Derm apt for trich

So i went to a dermatology apt today for my acne and then I also wanted to dicuss my hair thinning / baldness. I didn't even bring up having trich because of mental health stigma. She said I had alopecia and I felt so bad because it obvi not what I have. They don't have control of their hair loss and I do as it's genetic. They said rogan / minoxidil, but ive seen reviews where people says it doesn't work after they stop using it and how random hair grows other places. Im going to start February for my hair f29