Is surgery the best, safest option?

I'm 20 years old and gave birth to my daughter 6 months ago. I was a 34A before pregnancy, which I hated, then whilst breastfeeding, I went one cup size bigger and I was more fuller, WOW! I loved them! But sadly they had to go as breastfeeding wasn't the best choice for my baby, as she was struggling to feed off me. So my boobs headly slightly south and look deflated :( my left one is noticeably smaller than my right too. More noticeable now after breastfeeding. I really don't like them at all. I know most of you will just tell me to just accept me for who I am, but I want to do this for me, and only me. For my confidence and to feel sexy, and actually love my chest. Think about them everyday, but not in a bad way anymore. I don't believe in breast enlarging pills or creams - if you disagree, please let me know and tell me your experiences. I'm thinking of breat inplants when I can afford it. Only to make them a cup size bigger, and fuller. Please tell me your stories/experiences of breast inplants :) I'd love to hear from you. Any changes in feelings or sensations in breasts after healing? Etc. Thanks :)