I also have acne scars on my face

the sunk in ones that makes it look like craters on the moons surface.
Before going to a dermatologist, I had a lot of those scars and they are pretty large and noticeable especially for someone with large pores like me. I also washed my face with the numerous acne cleansing wash without seeing results.
My dermatologists wrote prescriptions for Clindamycin (RX only) and Finacea (RX only) to be applied twice a day. She also recommended Panoxyl's Acne wash that contains Benzoyl Peroxide twice a week along with a moisturizing exfoliating face wash (I use Neutrogena's Ultra Gentle Hydrating Cleanser with the creamy formula) twice a day since my skin is very dry.
My acne decreased dramatically, pores appear smaller and the acne scars smoothed out just a bit (it's barely noticeable, but it's also more likely just due to the smoother skin).
She then recommended me to go for a microdermabrasion combined with a light chemical peel after the microdermabrasion session to help get rid of those sunk in acne scars. She described that the microdermabrasion not only helps get rid of the top layer of dead skin cells to for a fresher looking top layer, but it also pulls the tissue underneath the skin up and tears them a bit so the tissue rebuilds itself stronger (kind of like exercising to tear the muscles up to rebuild stronger muscles). She stated that I should see results within 3 to 4 sessions.
I finished session two a month ago and will go for my third session tomorrow. I can tell you that the sunk in acne scars on my face is significantly smaller/less sunk in. I had smaller sunk in acne scars throughout my face and most of those smaller ones are now gone. The larger ones are still there, but smaller.
Results might vary for different people but this is the regiment that my dermatologist recommended me and it has worked wonderfully for me so far. So what I recommend is for you to start seeing a dermatologist and they can really help you out since they are there seeing your skin in person not in photos and they are experts in this field.
Btw, I do the microdermabrasion and light chemical peel sessions in between laser treatments since this allows the skin to heal in between each of those treatments.
Hope this helps!