How can I restore functionality after a free nipple graft? (photos)

Hello docs. I am 22 & had my breast reduction surgery almost a year ago. I wanted to stay locally & wanted my procedure done ASAP, but I think I was too rash. My breasts were definitely very, very large, but I have since come to learn that a FNG was not necessary. I am absolutely devastated, like sobbing as I write this. I just want to know what can be done to get back to as normal breasts as possible. I am curious about resensation surgery to fix my sexual nerves & more projection in my nipples