How Do I Get Rid of a Frowny Face/cheeks? (photo)

Your cheeks are heavy, and they are weighing down the corners of your mouth.  I would suggest using Voluma or Restylane lyft in the cheeks to lift them.  I use a technique where I pull the cheek up and then use the filler to "tack" the cheek into place.  The result is very natural and lifts the weight of the cheek as well as the corners of the mouth.  In addition, sculptra can add more volume to the top of the face, restoring the focal point towards the upper third.Finally, neurotoxin (botox or dysport) in the DAO muscles will help to keep those muscles from pulling the sides 

I think you would definitely benefit from adding some volume into your upper cheeks. Start with filler injections.