I don't think personality changes but I do think what we tolerate and accept becomes different. 10 years ago I was a party animal who went to pubs and clubs, I was being consumed by my mental health, now I have no confidence so I don't go to the same places, I'd rather sit on my own and I can't handle parties.
I've got a shorter temper when it comes to nonsense or stupid actions.
In school I was hated by everyone because I didn't fit in and couldn't handle the school environment.
So I think that our reactions and tastes change but I'm not sure about personality.