Hi there,
My mother uses a chair, and she uses resistance bands, or light weights to use for strengths training. She does leg raises while sitting down to workout the legs. She does go walking a lot. She has a really bad back and the surgery was to relieve her back pain from the weight she was carrying. She is starting those aquatic exercises in a few weeks, she has these workout machines that are really old like from the 70's I think. Real easy things like a thing that lets you workout your arms, and it sits on a counter so she is just cycling her arms, she has a stepper that she stands on and does her little leg workouts, real simple but effective.
Maybe once you get hooked up with a group of individuals, not necessarily that have had weigh loss surgery, but that are in the same spot as you, you will start to get motivation from that group and get re-vamped in your eating and workouts. Always try to fill your circle up with positive and encouraging people.
Be blessed
Debbie