Take Time To Breath
Obviously, right?! We all breathe, of course; but taking deep, concentrated breaths isn’t to be undervalued. If you feel yourself tense, stressed or anxious then if you are able to, take a step back from the situation.
Inhale for 5-6 seconds, hold the breath for 1-2 seconds and exhale for 5-6.
You will find your own pattern that works for you, this is just an example but find your centre and practice it. Just counting whilst breathing deeply helps to ground and refocus your mind. At the same time, focus in on your core and draw your belly button in towards your spine, straightening your back and relaxing your shoulders. This might seem like a lot to concentrate on but it soon becomes habit and will be something you make time to do without much effort.