All through my childhood, I spent long periods alone in my bedroom as I used to be sent there by my mother for the slightest 'misbehaviour'. I would hear my siblings chattering and laughing and generally just being a normal family. I used to feel so isolated and alone and like I did not deserve to be a part of that. No TV or anything in my room. I would read, daydream and cry a lot. My mother used to work from early evening and would send me to my room before she went 'just in case I caused trouble'.
As a adult I have always felt separated off from other people although managed to marry and have DC. I have no friends and have never been able to get close to DH's family.
I have realised that I quite often feel like I did through my childhood/teenage years. That I am trapped alone in my room (of course I'm not, I can do whatever I want!) and everyone else is getting on with their lives whilst I am stuck here. It's really difficult to describe unless you have experienced it.
I have had extensive therapy for physical/emotional and sexual abuse but can seem to move on from feeling like the kid that I was 
and I have 4 of my own now!
I have been diagnosed with OCD (more intrusive thoughts than compulsions nowadays but been through them all checking, cleaning etc). I have a massively overinflated sense of responsibility and always feel very much like I am doing something wrong, constantly questioning myself.
Despite the therapy I still seem to be 'stuck'. Any advice greatly appreciated!