The most powerful tool to manage and reduce anxiety, and all emotions, is your breath.
The quality of your breathing reflects your stress level.
Take a moment (or five/ten/twenty moments) a day to simply pay attention to your breathing.
At first just notice it how your breath is without trying to change it. Keep your attention with it until you notice it shift a little. Then invite it to go deeper down.
I also like to imagine I am breathing in through a hole in my lower belly and out through my nose.
Belly breathing anchors you in the now and into your body. From here emotions can settle and our mind’s pace can be seen and slowed.