I really needed to read this after multiple hard to digest anxiety self help books. Like a breath of fresh air. It feels like getting advice from someone who could easily be your best mate. Robert does some fantastic podcasts on his website that are worth listening to also. Unfortunately breathing exercises have never helped with my anxiety to date. I've found it more helpful recently to stop focusing on my breathing so I can let my body breathe the way it's supposed to mainly because I was becoming too fixated on it. You know, how's my breathing? Too fast? Too slow? Am I feeling anxious? Constantly 'checking in' and then getting more worried. I'm pretty sure I forgot how to just breathe. I find that tensing various muscle groups systematically helps more than deep breathing at least for me anyway.