Feeling stuck with weight loss

I gained 30lbs with my pregnancy and when I got back from the hospital I was down to 15lbs but I have literally lost nothing since. I’m so frustrated. I walk all the time, I do like my treats but overall I eat healthy and don’t eat a ton. I breastfeed and I obviously hoped that was going to help with some weight loss.

I hate how stuck that I feel and like I can’t do anything to lose this weight. I’m a bridesmaid in a wedding in February and I thought I’d be more myself by then.

Anyone else feel stuck? Is it helpless until after I stop breastfeeding?