Can cheek filler fix this? (Photo)

I have a sunken area on one side of my face, one cheek only. The area is 12 years old scaring from me picking at acne. I want to know the best way to improve this area with the least amount of risk. Would microneedling, filler, thread lift to produce collagen, what would be the best fix? Im so scared of trying to fix it and making it worse. Afraid of the risks. But battle depression over it daily, so it's tome to make a move and fix it. I'm currently 35 years old.