Phoo. My brilliant, witty reply disappeared.
Welcome Robyn. I approve your name choice.
You may want to check out the ElderTG link under Support Groups/Mailing Lists/ at the bottom of the main page.
Janet is right about a gender counselor. It is the most important step when questioning one's true gender. Here is our list of PA counselors:
https://www.susans.org/Health/Therapists_and_Counselors/USA/Pennsylvania/I think you are right on track, by the way. I began my transition journey at age 58 and had SRS on my 63rd birthday. Older than many; younger than some.

Come see us in Chat, too, and be sure to check out our wiki.
Robyn