Hi guys. So I've had severe acne for years and it's finally starting to die down. I haven't had any major breakouts in a month or two but my skins full of scars (mainly box car and rolling scars). Heres a picture of how I currently look like and this is only the good side of my face... :\

I've been reading up on dermarolling and would like to give it a shot. Would this work for my situation and which needle length would suit me (or should I use multiple lengths)? Any and all help would be much appreciated....