I have an indent on my left side of face/cheek that keeps getting bigger. What causes this? How can it be fixed? (Photo)

I need help! For the past couple of years my upper right cheek has had a indent and as the years go on it gets a little bigger. I think its from picking my face too many times but i dont know. My left side of my face is fine but i look uneven now. Ive tried microderming needles but it hasnt helped. Ive looked it up on google but never actually saw anything like my problem.It makes me feel so insecure, im willing to do anything to fix this!