Fractional CO2 Resurfacing for Acne Scars and Uneven Skin Tone?

Can you tell me what is the best solution for uneven skin tone, redness and acne scarring?

I’m a 21 yo male with really fair skin, persistent redness (been using benzyl peroxide daily with a moisturiser for a few years), mild acne (pimples and blackheads) and a bit of light-medium scarring (had bad acne when younger). Have found one place in Sydney on the North Shore that does it. They say Co2 will reduce scarring by around 30% and Erbium/co2 will be around 80%, however they wouldn’t show pics because they said it looks terrible!

I am planning to take a few weeks off in November and am considering getting fractional co2 done. I realise it wont do as much but seems safer. I would absolutely love it if it worked all to plan, though am afraid of scarring from the heat or persistent redness or the possibility that it wont do anything at all.

Doctors do make it seem like a walk in the park. Was wondering if anyone can give any suggestions or possibility of an even better treatment? I would really appreciate it if anyone could give me some advice and more than happy to keep you updated with any results, pics and text. Thanks !