I am fifty years old and I have never known what it is to love. I can write those words, know them to be true, but feel only the regret that a tone-deaf man must feel because he can't appreicate music, a regret less keen because it is for something never known, not for something lost.
There is no point in regretting any part of the past. The past can't now be altered, the future has yet to be lived, and consciously to experience every moment of the present is the only way to gain at least the illusion of immortality.