Noooooo!!!! I hate your life.
I've been in similar, hit from behind and my car was totaled. Definitely good to have a doctor check up on you to have it documented that you did see a doctor. Then see if you can have your auto insurance cover the TOM'S taillights and other things back there.
That white color will be a PITA to match. It's the most expensive Subaru color to deal with and pretty much NEVER looks right.
I'm sorry that happened to you. It's one of my biggest fears to be hit like that again.