(((( Onlymedid ))))
You do not deserve punishment. You were so young, and you were confused. A confused child does not deserve punishment.
You are so brave to say this. Something else also shows you do not deserve punishment- you are sorry for what happened, you have no evil malicious intent. Here you are, worried about him. A mean, cruel person would not have admitted this. You are not a bad person. You regret your actions.
It's great that you were able to tell your T, I am sure that will help you. I'm sure it seems hard to forgive yourself, but you will be able to go down that path, because I have no doubts you are an amazing person, and you only deserve good. It takes a very strong person to admit to the faults in their past. You are not bad. You are not a horrible sister.
Say the word if I can do anything to help.
Here with you.