Anyone having trouble with acne scars?

i have a bad habit of picking at pimples, and over time it's left red marks on my face. I don't want them to turn into holes (like dane cook has on his face) I'm scared that it might happen. I can barley notice them when I have makeup on, and I wash my face everynight. if any of you out there have or had the same problem with scars, how did you treat it?
Anyone having trouble with acne scars?
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