I want to get a treatment for acne scars. What is the satisfaction level like for old scars?

I have a large acne scar in a really awkward spot—next to my nose, where the glasses back rests. Originally, a pimple near my forehead burst and left a scar, and as time went by, it gradually grew larger and extended down to my nose. Would the satisfaction rate be high for an acne scar treatment like this, given how old and large it is? Pore reduction is a given, but this scar really bothers me.

Also, another area where I would like to see results from an acne scar treatment is the dark pigmentation remaining all over my face. I am wondering if the satisfaction level is high for this as well.

I am curious whether there is a separate procedure specifically called "acne scar treatment," or if existing treatments tailored to my skin and scar condition are combined. I would also like to know how many sessions are recommended for this type of treatment, and if the cost differs for partial versus full treatment.

Also, I don't have any acne to extract right now, but is it possible to get sebum control treatment specifically for the spots where breakouts keep occurring? It's really stressing me out because acne keeps popping up in the same spots.