HELP - Extreme loss of fat in 1 cheek - is fat grafting the best solution? (Photo)

Im only 25, and there is a drastic loss of volume in 1 of my cheeks most likely caused by sleeping on that side extensively. Within the past week and a half it seems to have gotten more noticeable and there is even slight pain there from time to time. Realistically, what are my options as a 25 year old to treat this? I'm not interested in getting into dermal fillers where I have to return once or twice every year, is fat grafting the solution for me?