..So this is my second lucid.

I'm in a hallway, and there are a few people in it with me. There is stone tile flooring. As I'm turning a corner, I ask myself if I'm dreaming. I say no I'm not, this is too real, but might as well do the nose reality check. I do it, and it's like an industrial sized fan amount of air I blow through my nose lol.

My real heart starts pounding and my breathing is very intense. I think "calm the hell down or you're gonna ruin it!".

I remember the hand trick and start staring at my hands. They start vibrating really hard, which I assiociate with the dream fading. As a last resort I remember that you can rub the floor. Before I can try that I just black out.

Is there anything I can do to remain clam once I realize I'm lucid?