How can I fix my teeth after dentist filed one tooth too much on the bottom? (Photos)

Please I'm so sad dentist filed one tooth too much on the bottom but also buffed the backside touching 6 teeth I'm freaking out. I'm so upset he filed a tooth but then he polished the back side of my teeth going against 6 teeth He saids he only touched one tooth this is not true I felt the too on the backside of the teeth I brush my teeth they are blunt rough and shorter my retainer and pictures show the difference My mouth is small he did this file because I have a implant on the top I'm crying everyday He didn't have to do this I bite down the teeth are so weak soft & my jaw isn't right so horrible can this be fixed?