I'm intense, so it's easy for me lose my cool though I contain it in most settings. Working out, taking the dogs for a walk, or even taking a 'chill pill' when things just get to be to much.

Calming for me ? Pet my cats (2). Listen to serene music. Walk in the woods - away from humans. Working out - afterwards. Hop on the motorcycle and roll along some beautiful back country roads ...
All this said - I don't get riled up too often , as most things aren't worth it !

Cannabis. You may laugh, but as someone diagnosed with bipolar and severe depression, this works sooo well for me. The drugs the doctors put me on were terrible - I mean the weight gain alone was insane! "Here take these meds every day for your depression and bipolar, but remember it can cause suicide" WTF??? So, I lost 97lbs, got off that crap and smoke. When I get to the point I am having difficulty controlling my anger, I take a few puffs.
But - before I do that, I try to calm down on my own. I take deep breaths, I talk it out with someone, I ask if this will matter in a year? 6 months? 1 month? 1 week? 1 day? all the way down to 5 minutes. If the answer to those is 'No', I'm good. If not - not sure because I've never run into that! LOL

10 yawn and stretches

I take deep breaths--as many as necessary. I tell myself that I can either be a part of the problem or a part of the solution. I also try to remember to ask questions first before I jump to conclusions and make myself angry over something I may have misinterpreted. I am very good at conflict resolution which I learned from a therapist.

The first thing to remember is that most people when they feel hurt jump right to being angry. If you can figuratively take a step back and think about why felt hurt, then the anger disappears and now you can deal with the real issue from a perspective of what you are REALLY feeling. That's a very important step and it takes all the steam out of anger and totally changes the dynamics of the situation.

When I'm really anxious or down on myself for something I screwed up I remember that I'm going to die and nothing I nor anyone did or will ever do will matter because the oblivion of the universe is unavoidable and inevitable.