How To Remove Old Scars On Face?

Hi Sir, I am 25 yrs old male.When I was 17 yrs old I picked two pimples & their scabs on lefthand side of my forehead & I also picked my nose.Due to this, scars on my forehead & nose have been occured.By time they ( scars ) had been fading slightly but not completely gone.After that I didn't pick again. My skin is oily,so at present I clean, toning & moisturising my face by Himalaya berbals products.Recently One line of dark patches have occured on the middle of my nose. So, Sir kindly suggest me the remedy to remove these lightly faded scars & this dark patches on my nose. Should I continue this cleaning , toning & moisturising process?
My weight is 62 kg
& Height 5.5 feet