I am so glad that you were brave enough to share this, and that the circumstances of my day lead me here to see your post...
The AMA and APA consider all gestures and evidence of self-harm to be indicators of 'BPD,' which I am sure you've heard and read over and over and over again. Screw that. I think your scars show that you have endured enormous amounts of pain, pain that you did not feel safe to express in 'typical' ways, pain that would not have been relieved through any other means of 'cutting' them out. I think that you should not be ashamed of your journey and the pain it included. Grieve your pain. Investigate new ways to express your pain if you wish to leave your skin out of it. Find other women who understand this journey and have chosen paths to healing that do not include labels, meds (?) and shame. The Icarus Project is a great place to begin looking. Also, peer-based, non-medical model counseling centers are very helpful. 'Radical' mental health collectives, etc.
I'd be totally willing to share my story and specific coping strategies, if you think that would be helpful to you.
{{ HUGS }} from the Sierra Nevada Foothills!!