Hi my arm is covered with self harm scars, they are mostly white, and some have left indents in my skin. Would a derma roller help me?

Scars & VitaminE. Life holds no guarantees as we know, but vitamin e oil placed directly on the scar regularly can help to fade or remove the scar. You can get a bottle of it in the drug store. It's inexpensive and worth a try; just be patient. Peace and good health. Scars symbolize overcoming a wound.