NWOT Sanctuary Black Fuzzy Sweater size M

Never worn, new soft fuzzy sweater. Very warm. Front top to bottom 21" Back 24" Sleeves 19" 70% Nylon 30% Acrylic Size M My problem with it: I think it makes me fatter, I can't get used to the fact that I gained 25LB a few years ago and can't get rid of it. I am 5'8 and 150 lb now.