Wouldn't say terrified is the right word for expecting failure, but a good chunk of me was braced for exactly that. A whole lifetime of nothing working will do that to you. Standing 5'3, started this at 274 lbs on April 1st, and despite being otherwise pretty healthy, my real fear was slowly ballooning until I couldn't leave the house anymore. A bit over three months in now, down 34 lbs, food noise has vanished, appetite's under control, and as an unexpected bonus, the way this drug class calms inflammation has left me nearly pain-free, I deal with severe osteoarthritis and fibromyalgia. Won't lie, the side effects have been rough at times for me personally. But it's been worth every bit of it.