First of all, I am so happy I found this forum. I felt very lonely before. I am 58 yo and have tried to grow my boobs on my own for about two years, on and off, right now on. Have tried most herbal supplements discussed here and also HRT with Estradiol and Spiro. 
Have had some growth but not fully developed yet. And to be honest Im a little afraid of getting them too big, still see myself as a straight man, married and all. 
I think I am a AA cup, which I believe is smaller than A. Funny thing is that I really dont know what triggered me to start this journey, and now I cant stop it.