I'm stuck at the same weight for a month!

I've been doing this for 3 months and am down 23 lbs. I'm a 55yr old 5"2 female and weighing 127 but I would like to lose 5 more. I'm omad but do drink too much coffee with 3 cream and 3 sweetener which I am sure has not helped. My dinner consists of 2 chicken thighs w bone in skin on and some chunks of butter....sometimes steak and sometimes pork chops...but not a lot. I drink Perrier mostly at night and little to no water during the day....what am I doing wrong...or did I just answer my own question