How do you manage acne scars?

My acne has subsided lately, but I'm worried because the marks keep lingering.🥲

New breakouts are stressful, but I'm even more bothered by the red marks or spots that remain after they subside.
I'm also being cautious because I'm worried that applying this and that might make my skin even more sensitive...

How do you all manage acne scars?
Please let me know if there are any products you've tried that were good, lifestyle habits, or behaviors to avoid! 🥹