How do you stop panicking that you broke your body?

This is my 2nd recovery, and I overshot way more than my first time. Anytime I read about yo-yoing making you rebound, it feels like I've broken my body and will never be in a healthy place/where I was without an ED again. I feel broken. How do you trust your body to regulate itself and end up in a healthy place? It feels like I'm destined to be overshot forever