Thyroid Issues and Weight Loss

Meagan • Have a happy day. 😄

So, I had my thyroid out in June of 2013 so 4.5 years ago. I've gained about 40+lbs since and am trying to get back to my pre-surgery weight, about 125-135. I'd like to do this without bulking up. Any advice??? Picture from Sunday 12/31/17, for reference.