I have also had a major personality chnage after a year on E. Dodie hit the nail on the head with the comment about now being an open book.
I used to hide myself, I would wear dull browns & greens (yuk), i'd wear a big coat, hat & headphones. This hid my body, my hair (or lack of) & made it very easy to block out the world. Now I favour purples, burgandy, blue & red clothes, anything but green & brown. I still wear headphones but I love my music.
I hardly ever initiated contact with people but now i'm often the first to pick up the phone & dial someones number, i'd only phone my mum if I needed something & now I phone her at least once a week just to see how she is, she's even stopped asking "so do you need something?" when I phone.
I used to be constantly angry, if someone lit the blue touch paper then they needed to back away quickly. I never resorted to violence but who needs fists when your mouth is a lethal weapon. Now it takes alot, I really mean bucket loads to make me angry enough to get verbal with an antagonist, I handle most situations calmly
I used to listen to nothing but heavy metal, now I listen to classical, 80's pop and female vocalists such as Chloe Agnew.
I used to play highly competitive video games & now if it's not a co-op game i'm not interested.
I believe that this personality was suppressed by my constant anger, anger at how unfair life has been to me, anger at society for not being accepting enough for me to transition earlier, anger at myself for being too cowardly to come out earlier in my life & anger for commiting myself to a relationship I was unhappy in & for dragging this lovely woman into a relationship that was doomed from day one.
Now I feel nothing but acceptance of myself, my life & those around me.