advice please!! uneven skin tone!!

Help!!!! So I have uneven skin complexion, and its bring my self esteem down... And i hate it! I have tried some creams and nothing work, I have been using sunblock but still there and even tried home remedy. anyone has any suggestion??. I think its sun damage since my cheeks are clearer than rest of face and got some acne marks!. i feel like Im a teenager all over again with these acne marks!!.