Not sleep trained

Has anyone else not sleep trained their babe yet??? My girl is 9 months old. She sleeps really well but I do rock her to sleep. It’s generally quick. Well the pediatrician said try sleep training and tonight we tried. Think I lasted 5 minutes if that of her crying and I ran to her. Mom fail? I can’t listen to her cry. We tried Ferber and it makes things worse. Ugh what am I gonna do!