Brad Schipke explains that anger over small things usually masks deeper pain or trauma. He recommends journaling to surface what's really bothering you, then identifying and solving the root hurt. When you address the original wound, the anger stops.
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Why do I get angry over such little things? This is a question I get all the time. The most important thing to know about anger is that it is a top-level emotion and it is a response to a pain that you've experienced. So basically, your body and your mind is reacting in anger to protect yourself from experiencing a pain in the past. If you want to overcome that anger and that— those angry outbursts, you need to allow yourself to express that anger in a healthy way. Best way that I know is to just journal it out honestly and then get to the root of that anger, which is typically a pain or a trauma, and then you can work through that pain You can solve that pain, you can problem solve, and then when you solve the root of it, the anger goes away. So if you want to learn more tools on how to actually do that, make sure to subscribe. But I hope that this was helpful.