Flat cheeks and prominent deep nasolabial folds. Am I a candidate for a mid-face lift or fat transfer? (photos)

At 22, I would not recommend any surgery for you.  One syringe of Juvederm may not have been an adequate dose and I would not dismiss fillers offhand based on that experience. Fat transfer is not a permanent solution and has its own risks/consequences.  Nothing in cosmetic procedures can be considered permanent as the facial changes that come with aging will continue nevertheless.

Fillers and fat may be reasonable options for your concerns.  It will take a significant volume to address these concerns. Consider scheduling another consultation.

The midface is always the most difficult area of the face to work, and one thing to remember is that no procedure exists that will give a permanent result - you always continue to age. Having said that, you can certainly make a nice improvement by increasing the volume of your flattened areas. Fat would be the best thing to start with because more can be injected at one time, giving you a better result as compared to one cc of Juvederm.