How do I stay calm on a call when they push back?

You can make the call now. The moment that undoes you is when they push back or go quiet and cold, and something in you falls apart. That is not a lack of skill. It is your body reading rejection as danger and flooding you before your thinking mind catches up. Almost everyone feels it. Most just hide it better. Here is what helps: their pushback is information, not a verdict on you. No is where the real conversation starts, not where it ends. When you stop treating cold responses as proof you are failing, they lose their power to scatter you. The person on the other end is not your judge. They are just someone with an objection. Before your next call, pick your three most common pushbacks and write one calm line for each. When one comes, you are not improvising in a panic; you are reaching for something ready. And breathe out slow before you answer. A steady voice buys you the half-second your rattled mind needs to come back.