This post is long overdue.
It is also quite smaller than it should be, which means that much more is coming.
This is a breathing technique that I learned in a training with Anthony Jacquin and Ben Wolff.
It is known to improve Heart Rate Variability, and versions of it have been shared through the breathwork community and beyond. Here are two videos I made regarding this technique. The first describes it and gives a very basic demo, and the other is a visual-only description, with a visually guided breathe-along.
This technique is the first I wanted to include in this line-up because it allows you to take immediate, real-time control over an emotion or reaction that may have seemed out of control before.
From there, choosing a more useful feeling becomes possible.
Wishing you all the best as I gather some more resources for your adventure!