The links you've been given have many good suggestions, BUT you have to practice the suggestions. Part of our homework as quitters is to first understand the nature of this addiction, what it does to our brains, then deal with our specific triggers. Not all stress-relieving techniques will work for everyone. When you find one that works for you, hang onto it and continue to employ it. Make yourself a /blogs/Christine_Aka_Legend-blog/2014/08/22/quit-kit?sr=search&searchId=0875f2d5-ca04-4288-8c68-6182... if you don't have one already. It's not only tanglible things, it's mental concepts that bring you back to correct focus. Many of us, for example, copy and print out blogs or phrases that hit home with us and stick them in a binder to refer back to when our addicted brain starts it's whispering routine.
The most important thing to do when angry or stressed is turn your focus in another direction. Don't sit there dwelling on the incident or the cause. Change you're mind's direction. Listening to music or going for a walk (or some sort of physical activity) are some good techniques. Also - find something funny about it all. Humor takes us to a different place with a different perspective!
