You will be fine. Keep your head up and do what they say. I had my surgery 3 weeks ago and have diabetes and high blood pressure. Already of the high blood pressure meds but the diabetes is harder to get rid of. You are not very overweight so you will not lose the weight quickly. Trust me. I lost 20lbs before my surgery and only lost 2.5 lbs in the last 3 weeks. If you have diabetes it will even take longer.....