Low Metabolism- No Hunger- Will the Sleeve Work?

I'm at the pre-op stage. Still waiting to get all my tests (cardiac, sleep study) done. I'm self-paying, so expect the surgery to be sometime in September. My question at the first doctor's visit was about my low metabolism and lack of hunger. I suffer from depression which has affected my ability to get hungry and eat nutritious meals. Also, I have a low metabolism from hypothyroidism. I weigh 252 lbs. Goal weight is 160 lbs. And height is 5' 9". My question is would the sleeve work for me? The surgeon thinks it will. I'm concerned I will be one of those people struggling to lose a couple pounds a month after surgery. And there is no going back. I can't restrict any more calories than I can after I'm sleeved. Anyone have any insights on this? Thanks in advance.