Hitting the wall

Last Thanksgiving I knew I over did it a bit to the point where I had to hop on the scales and see the damage. 235 pounds!! The most Ive ever weighed in my life, I was disgusted. I was still recovering from my shoulder surgery I had in late August but I made it a goal to get back into the gym and get this weight down. I started lifting light at first due to my shoulder and slowly started upping the weight,I still dont go heavy as Im on more of a fat burning mission instead of adding bulk. Med weight / high reps while doing the elliptical glider-I do the glider instead of the treadmill due to my knees-. The first day on the glider I did about 8 min before I thought I was having a heart attack lol. I did 8 min for a few days then 10 min, up to 20, 40 and right now I am at an hour straight which I do everyday whether I lift or not. The weight has come down, as of this morning I am at 212 pounds and it seems like im stuck around that area. Ive knocked off of the Pepsi and I am paying more attention to what I eat. Just looking for some tips for getting past this 212 wall I seem to have run into. My goal is to get back to around 180 or so. The dream is 165. Any advice is appreciated.