I am almost in a similar situation. I finally broke down and couldn't fight the dysphoria anymore. I worked with a therapist and "trialed" a low-dose HRT to see how I would do as prescribed. Well, the short answer is the HRT worked, but it has taken a lot of trial and error to find the right medication, route and dosage. I am still figuring it out. I was really surprised at how well the HRT helped clear my mind. I don't fight with myself internally anymore and that is the biggest benefit I see. I am 30 some years old, so I don't expect huge drastic changes to take place, nor would I consider, if I were to fully, transition of becoming a model. Sure, I would love to go through SRS, I wish I had realized all this sooner and I wish I was born a female. However, all those wishes aren't going to change the reality that I am who I am right here and now. I have GID, I am married with 3.5 kids. I love my family and I want to keep it that way. So, even though I may not be transitioning fully, I am taking HRT and I am starting to see physical changes.
And I am good with the physical changes. Chances are I won't be going topless next summer, but the mental benefits for me far outweigh any physical changes that may come. To each their own and I will highly recommend what has already been said; work with a therapist and find a competent provider because what is working for me may not work for you.