Weight and bad self esteem?

Hey everyone! 
​I had my son 9 months ago and I can't seem to feel good about myself since I had the baby. Don't get me wrong I love being a mommy to my son and I'm not trying to be selfish but I think that I should be/feel sexy infront of my hubby. I feel fat and not sexy at all. I use to be 190 but I've had lipo suction, a butt lift, and breast lift and I still can't feel good about myself. Being 5ft5in and 150 pounds I feel it's impossible to ever get back to my weight at 125. 
​Can any of you ladies recommend any diets or anything will help!