Re: Help... Please
You got some great advice from Seek2Clean.
Why do you fear telling your parents? Do you fear telling them because you were somewhere you weren't supposed to be when the assaults took place? If that's the case, are you afraid they will tell you it's all your fault?
How have your parents behaved in the past when you told them about a problem you were having? Did they listen to you and work with you to solve it? If so---trust that they will react the same way now.
You said that you're in outpatient rehab. I'm sure your parents wonder what caused you to do drugs. When you tell them about the assaults and how it all made you feel, they will understand why you did drugs.
I agree with Seek2Clean---you do need some counseling. When you tell your parents what happened to you, tell them that you want to start counseling.
You can also call 1-800-656-HOPE which is the hotline for RAINN (Rape Abuse & Incest National Network). The person on the other end can give you advice and steer you to the proper help.
You must deal with what happened so that you can heal emotionally. Best of luck with everything.