LOL! I don't think any amount of sex changing would turn some of these
You were Tom? [goes off, roots around] Well, you do sound different now... more relaxed. -- Long ago I had a TG friend whom I knew before, during, and after, and there was a personality transition.... to be expected, I think, under changing hormonal conditions. Ordinary biology. She had a sort of emotional crisis shortly after and I told her stop worrying, you're just going through puberty again. The light bulb went on and she was like "oh! then that's fine!"
But I'm glad you found yourself, that's what counts.
Not bothering to look at the alleged study, but I wonder if a combination of high estrogen and low cholesterol is the root of the issue; turns out high cholesterol in the elderly is protective against dementia.