hang on buddy. There are times when we would like that our past was taken different course but that is something which we can't change. It could be connected to any aspect of our lives, there are so many things for regretting beside abuse no matter on age, so please be aware that you are not alone.
I'm sure you did many things in your life to have reasons to be proud. Sometimes it is much more difficult for us to keep assertive view on ourselves and our lives, unfortunately abuse has left negative self image and we all have problems with it.
Just keep sharing with us and please believe that you have so much to offer to others!