How to remove the scars/marks on the upper cheek??

17M. I had acne during 15-16yo and still get some patches on the upper cheek due to some trapped hair follicles. I used to burst them and now I have permanent scars. I have done everything, tried everything, but those won't go away. What shall I do? It(scars) seems to have developed some stretch marks type appearance. Some are not visible. And there is one that looks like a pit

Kia karun