Lightening Asian Skin Back to Natural Color (3-4 Shades)

I am a fairly light olive skinned Asian, but my face is still 3-4x darker, some sort of perma-tan combined with acne scarring even after sun avoidance for > 1yr. I am afraid to use my 7% HQ longer than 2 weeks since my skin looks darker when using. Is this normal? How often and how long should I use it? What kind of chemical peel/laser treatment removes dark skin? I want to achieve significant lightening on my face, but it seems that hyperpigment is a risk and I DO NOT want my face any darker.