It would be good to get treatment for the remaining acne scars on my chin after the acne subsides, right?

My acne has improved a lot, but I'm worried because the scars on my chin keep remaining.
Even when I cover it with makeup, there are parts that look sunken like shadows, so I get more self-conscious when taking photos.

I thought it would fade over time, but it has remained the same as I expected, so I am looking into laser treatment.
I'm wondering if Fraxel or scar lasers are effective on these indented marks.

My skin is on the sensitive side, so I'm worried about whether it might be too irritating.
I would also like to know how many sessions I need to take to feel a change.