Suppressing emotions?

Can you help me understand how to not suppress an emotion from my child while also helping them calm down? I don’t want to suppress their feelings and I want to seek to understand while still teaching them to manage their emotions.

I could use some clarification also on accepting no answers. Does that mean they should not feel disappointed when losing a game or when they don’t get something they worked for? It seems appropriate for them to feel disappointed at times.

Thanks for your help!