I think it's about her past in general, not just her father or just the cutting. Of course, the cutting makes an appearance. "All the pain and the truth. I wear like a battle wound," is the major one. She wears the scars of her past, but not in shame. She's proud that she's been able to over-come so much, and they could now be a reminder of all she is capable of, and her own strength. The person mentioned in here, "You can never hurt me again," could be her father. In fact, I think it kind of is. But I really think the 'you' is her past, and it can't hurt her ever again because she is moving on to the future. She may always have the past with her, but she won't let it hurt her.
I think it's about her past in general, not just her father or just the cutting. Of course, the cutting makes an appearance. "All the pain and the truth. I wear like a battle wound," is the major one. She wears the scars of her past, but not in shame. She's proud that she's been able to over-come so much, and they could now be a reminder of all she is capable of, and her own strength. The person mentioned in here, "You can never hurt me again," could be her father. In fact, I think it kind of is. But I really think the 'you' is her past, and it can't hurt her ever again because she is moving on to the future. She may always have the past with her, but she won't let it hurt her.