Men's Group

If weight isn't coming off as quickly as you'd like, find another metric of success. Time your bike ride, add more hills to your walk, count push-ups.

The bathroom scale isn't the only useful gauge. Muscle is more dense than fat, aerobic exercise adds muscle mass slowly, but improves your cardiovascular capacity. I wouldn't expect your total weight to change very quickly - and it arguably shouldn't. As your strength returns, try doing some weights. Muscle mass is the engine that burns fat.