hi llmaelynn87, i used to have the same problem like u too.. till i started using Bruno vassari skincare product. it is a product from spain,barcelona. and it works effectively especially on acne-prone/oily/combination skin. if u r interested i can get it for u with 10% discount. and for ur information, before i started using bruno vassari, i tried lotsa products too..like biotherm, dermalogica...it doesnt really help tho..
and regarding ur scar...all i can advise u is to do lotsa mask at home..especially those deep-cleansing mask..but dont overdo it as it will dry out ur skin..u can also opt for whitening mask as well.. it wont totally fade away ur scar..but it will definitely lighten the scar..and beware of ur food intake as well...if u really want to see the result..u shud avoid oily food for sure...and lotsa veggies will do wonder to ur skin..