So what are our options when we become angry? Conventional wisdom suggests screaming into or punching a pillow. This usually has the opposite effect and can actually prolong our angry feelings. It seems as though it is not possible to relax and show aggression at the same time. I think the thought was that one would scream or punch until exhausted. I suggest breathing deeply and slowly to help calm down. I recommend reading a fun book, or listening to some music you enjoy, even if it is hard core rap or heavy metal. If one enjoys the music they listen to, that is what counts. Don't listen to classical music if that sounds like fingernails on the chalkboard. That won't help.
When calm, it is easier to identify what issues are causing angry feelings. I believe that our thoughts about certain events, and not necessarily the events themselves, are what lead to angry feelings. For example: Rush hour traffic. When you read that, did you start thinking about how frustrating rush hour traffic can be, or do you enjoy rush hour traffic? If you have a deadline to meet, then rush hour traffic can cause you to be late. If you have a job that pays hourly, you might like rush hour traffic if your job is to drive a product to a certain location. You're being paid to sit in traffic! Awesome.
That's an example of cognitive therapy. I help show others that unhelpful thoughts can lead to unhelpful emotions, which has negative effects on our health and relationships. Even if someone has a deadline to meet, having thoughts such as "My boss is going to be so angry because I am late" or "I wouldn't be late if these idiots knew how to drive!" can cause us to feel angry. Consider these thoughts instead "It is frustrating that I am caught in this traffic, but I will get there when I can. I am not the first person to be late because of this. They might understand" or "Rush hour traffic is usually the result of too many cars, not incompetent driving. I will get there when I can". These thoughts can lead to less charged emotions and help one plan the next steps.
The next time you notice you are angry, try to take a step back from the situation and breathe. Try to identify what is causing the anger and adjust your thoughts appropriately. If you need help, find a trusted friend or counselor to help you sort out your thoughts.