Asking Doctor to prescribe Testosterone

I started on 0.025 Estradiol patch + 100mg of progesterone 4 months ago, with positive results so far - greatly improved sleep, lowered anxiety, hot flashes reduced by 90%. However I still have low libido and brain fog. From reading all of your posts and our Wiki, seems like testosterone would help with these symptoms.

How have all of you framed the request to your doctors and been successful? My doctor is supportive and really listens but I'm always concerned with being dismissed. Thanks!