Hi EllenP, it is nice to see another transitioner my age on here. (I am 53). You may not need to wait ten years to start living authentically.
I came out to myself in October, 2014, to my wife in March, 2015, started therapy in April, 2016, and started hormones on June 8, 2016. And even after only two weeks on hormones, I am starting to see subtle changes in my body, and drastic changes (for the better) in my mental outlook.
Hugs, Carly