The fear you have of revealing yourself to your therapist because of your Mum's terrible attitude towards you is a BIG THING, and like the others said a great insight to have. It's only once you go through the experience of not everyone being like your mother that you can really truly believe that it's possible. So addressing all these issues directly with your therapist is important. Do you feel ready to do that? Maybe you need to get to know your therapist better first? Presumably you will have time to go over past issues which you can't remember yet too.

Debbie