My suggestion is to try listening to the song "Till It's Over" by Tristam. It always keeps me calm.

We don't care what they

We will be here all day

We'll stay here till it's over

Till the world's out of sight

We will stand

We will fight

It's not over till it's over

As I fell to the ocean floor

Feeling light through an open door

Saw myself rise with the water

They thought they could keep me down,

Hold their breath and watch me drown,

But all they did has pushed me higher.

We don't care what they say

We will be here all day

We'll stay here till it's over

Till the world's out of sight

We will stand

We will fight

It's not over till it's over

Through the night and the rain

Through the time and the pain

We'll stand and we'll never fall

And then at the end of it all

We will win, we will chant

It's not over till it's over.

Answer:

meditation or setting aside your worries and other things and stare at a wall or the ceiling for a couple of minutes.