I tend to look at this a bit differently.
During my time here, I have met many folks who didn't transition until later in life. And a common thread is "I wish I could have done it sooner." Whilst I understand this sentiment, I can honestly say that those I have spoken to are beautiful, gentle, kind, empathetic souls, and have a deep understanding of some of the struggles a lot of people deal with. I firmly believe this comes, at least in part, through their experiences in life, and who what they've been through has made them.
I do not believe that these experiences have taken away from who they are, and who they have become, other than physical self expression. Rather I feel that their experiences in life have enriched them as people. Folks learn lessons, and see the world in a way that maybe a lot of other people don't. That is carried through as we continue to live life. Later life transition, in my view, does not mean you weren't you earlier. It just means you've had to deal with different challenges to others, in order to live. And by doing so, you've got to a place where you are able to express who you are, and who you're going to be in the future, in a way you are okay with. Every experience is valuable. However good, or bad.
I don't think it's about beginning again. That writes off a vast chunk of your life that is very important. Rather, it's about reconciling your past with your future. Being able to incorporate both into your present. Wherever in your life that occurs. You were always you, you will always be you. What you do about how to express that in a way which makes you happy, depends sometimes on circumstance, sometimes on knowledge, sometimes on opportunity. But it doesn't change the fact that everything you were and everything you will be, goes into who you are. The trick is being okay with that.
Love who you are, whenever you are. Because everything you've been through has gone into making it that way. And... well... everyone's story is worth reading. 🙂