listen Tanya, you have definately done the right thing by coming here. its the first step to recovery.

dont force yourself into telling your therapist, you will tell them when your sub-concious mind feels the need to, just take it slowly and dont rush anything. i undertsnad your desire to escape the reality of it. its a desperation need that you get and nothing else seems real.

i think, the best thing for you to do now, in my opinion, is to continue talking on here (you can pm me if you need anything at all, im always here for a chat), talking here to people who have similar experiences and are caring will help you. you can trust us here, no one will betray you here.
the other thing id suggest you do is to tell your parents. they will obviously be shocked initially but in time they will help you, you dont have to be alone in this. dont feel you are the "dirty" one, the abusers are the disgusting ones, not you.

i am so sorry to hear this, my thoughts are with you at this incredibly hard time, tanya. i just want you to know i care alot and im always here if you ever want a chat, you can trust me (like you can trust most people here at PsychCentral).

what you have been through is so hard, and it must leave you with tremendous levels of fear, that will seem so hard to overcome. but with time these feelings will fade.

you do need to talk to your therapist about this as they will help, but like i said, only tell them when you feel ready.

i wish you all the best Tanya, take care my friend. you are at the right place.