BREATHE! Slow deep breaths. In three your nose and out through your mouth.
I was told to orient myself. I have to look around amd tell myself I'm home. I'm safe. I have my kitty, Henry, to hold and love. Focus on my five senses. What are five things I can see? What are four things I can touch? What are three things I can smell? What are two things I can taste? What's one thing I can hear?
Another thing that helps me is coloring and painting my feelings. I put on a good movie. I call a friend not caring that it's 3 am.
I'm always here if you need help.