Dermapen or Derma Roller, trying to treat laser damage and seeing no results. What's the better device?

I am frustrated because I've read that dermaroller causes micro tearing and then read its Dermapen that does that. It's like the manufacturers of theses devices are attacking each other. I had 3 treatments with dermaroller now switched to dermapen and had 5 treatments no results at all so far I'm trying to treat laser damage that caused masses of pinholes in the skin. Worried now I'll make things worse please advise