I know everyone's situation is different. And no matter what age one is when they finally say enough of the religion,it's difficult.
But,from what I have observed among my friends,it appears that those who left in their teens/early 20's fare a bit better.
My two close friends who were disfellowshipped in their teens/early twenties,seemed to do fairly well with the transition. Of course,I know they went through a great deal of pain to get where they are today. I guess what I mean to say is that they had a head start.
And I think another factor is that,they were more likely to have non-Witness friends during their school years.
I just know that I have a long road ahead of me. And I have made great progress,but I still hit roadblocks. I'm still learning about myself and trying to find my authentic self. It's much harder when you were born into the religion.
Plus,leaving later,I'm way behind as far as relationships and education. It can be overwhelming. Looking back,I had moments where I wanted to leave when I was in my teens and 20's but,I was too afraid. I know there is no use regretting the past.
But,I just wish I was more ahead in the game,so to speak.