I take a time out when I start to feel the rage building. I’ve noticed that often the rage builds as part of a negative feedback loop; when we’re angry we forget to breathe, which just makes that tension worse. So I step away, focus on my breathing, read my email, eat a light snack. Sometimes I have to take several time outs before the streak is over; I went through a spell where I didn’t open a single incubator for THREE DAYS because I did not win a single battle, and that really set me back. But it would have set me back even more if I’d allowed that feedback loop to grow and feed on itself, till I was in a blind rage.
I also remind myself that part of what’s getting me wound up is based on what I tell myself it means. It’s very easy to get caught up in the story we tell ourselves about that meaning, like connecting it to some childhood experience that made you feel like you would never win at anything, or to take the tactics employed by your opponent personally (which is silly, because 99% of the time it can’t be personal, because you don’t know that other person at all). I like what Buddhism says about detachment, that attachment to things being a certain way, or working a certain way, or playing out the way I want them to play out is what makes us feel miserable. It’s like a little extra way we torture ourselves. So if we look at this as an opportunity to practice detachment, it can become a lot lighter, less personal, push fewer buttons.
I hope some of this was helpful for you.