Maintaining after wegovy

I’m about to start my first dose(oral) but I’m terrified of gaining back after it. I have a good routine but it is hard for me to lose weight. I walk nearly 10k everyday and do the gym.

Is it true that you gain back after you stop? I really don’t want to be on this long but I need a kick start.

Any success? How long were u on it, sw and gw, and did you keep it off?