Alternative Solutions to Fillers for Restoring Facial Volume?

I’m 26 years old, but I feel like my face is falling! I lost weight earlier this year, along with any remaining baby fat in my face, apparently. My cheeks are flat, and my tear troughs are greatly accentuated due to the volume loss in my face. I’m really shying away from any type of surgery, so what options do I have to help restore volume in these areas? My only concern is that I have super sensitive eyes (my lower eyelids got incredibly swollen from using Botox), so I’m worried I may have a bad reaction (i.e. tons of swelling) to fillers in this area. Any suggestions for alternatives to fillers? Please help!