I was an only child and I know you are right that has some impact. My mother did rely on me for company and I was always the one supporting her and protecting her when necessary in arguments.

I fully agree those factors will have contributed to this but I just feel that there must have been something actually mentally wrong with me rather than just those factors to be so developmentally backward. The sexual thing in particular bothers me as it meant I got into an abusive situation which is causing its own issues.