Aww I'm sorry you have gone through this.
Most states have laws that allow minors to get tested and treated for stds without parents knowing. Find an std clinic near you by going to http://itsyoursexlife.com/gyt (you'll have to copy and paste that) and entering your zip code in the box in the upper right side of the page.
While you are there, talk to them about referrals for counseling. It will help you work through all that.
Hang in there,
AJ