I don't know what I'm doing wrong

Long story short, I started my weight loss journey May of last year. From May to December 2019, I lost 40 pounds. It came easy! In December I had to have a hysterectomy. Everything, including my ovaries was taken. I'm getting back into the routine of my diet now and it's IMPOSSIBLE for me to lose. I've been eating healthy (just as I did before) and I can't lose. Not even a pound. Matter of fact I have out on 14 pounds since my surgery!!! I don't know what to do and I feel like crying cause I'm trying so hard to lose and nothing to show. What can I do????