What is the best treatment for acne scars?

I have many acne scars on my cheeks and chin, and I am considering treatment. I have red marks and brown pigmentation, and the uneven, pitted scars are quite noticeable. I am very stressed because the unevenness cannot be concealed even with makeup. I have heard about various treatments such as Fraxel, Pico Laser, and Subcision, and I am wondering which method would be suitable for my skin. I would also like to know how many sessions are typically required to see results, as well as the recovery period and cost. Since I have sensitive skin, I am concerned about potential side effects or hyperpigmentation. During the consultation, I would like to receive detailed guidance on the treatment method best suited to my scar condition. Thank you for your inquiry.