faced similar situation in my early 60's, my weight had ballooned to 311# and it was hard to kep my a1c below 7. My doctor arranged a visit with a dietician, best 60 minutes I've spent in recent memory. I learned the role of controlling carbs in weight loss, once put into practice I lost the first 10# rather quickly. After approximately 18 months watching my carbs I had lost 60#, my weight plateaued a few times sometimes for almost a year. I didn't let that discourage me, I kept eating properly and walking a mile every day working in a 2-3 mile walk a couple times a week. I have managed to keep the weight off and have been working out at the gym 3x/wk. to maintain muscle mass and tone. For me following this plan easily produced the results I was seeking and by sticking to it have maintained them.