Tim
I'm glad you are starting to deal with this while you are still young, so many of us leave it until we're way too old, then we suffer many years of torment.
With the right help, a good therapist who understands SA, support from family and friends - even if they don't know about the abuse they help just by being there. And of course there's the guys here, so supportive and giving. It's a great place.
I don't know how US laws / police work exactly, but here in the UK victims of abuse can talk to the police in confidence without them having to actually make a statement and following up with legal action. The police need every scrap of information they can get to help them piece everything together and backup the statement of any other victims.
But it's something you have make a decision on, but it might be worth a phone call to see what you can do.
I hope you find this a good place to be Tim, we all do.
Dave