Needing reassurance

Hi! I’m on my third week on 2.5, 7 lbs down and feeling amazing! I took my third shot at 4:15 today and just finished dinner (7:00). This is the first time since starting Zep that I finished my whole meal, and I’m feeling bad about it. I KNOW I shouldn’t, plus I am still within my calories and did an hour of exercise today. The meal wasn’t even that bad (grilled chicken Caesar wrap, some fries, piece of bruschetta). But prior to taking this it would quite literally reset my entire week’s progress, so it’s hard not to feel like I ruined everything and trust the medication. Before, even eating SLIGHTLY off I would balloon up and gain like 3 lbs that would take weeks to lose. I guess I just wanted to vent and maybe get some reassurance. It’s also hard because it’s been a life saver actually feeling full and being able to stop eating, so the thought of that going away scares me. I know it fluctuates though and I can’t expect perfection, but this being the first time on my new journey so idk what to expect