How do I keep myself from overreacting?

I overreact when I'm emotional. To prevent tis, I take deep breaths to stop myself from lashing out.

The hardest part is catching myself overreacting (mainly because I think I am appropriately-reacting when I'm doing it), but when I do catch myself, I take a deep cleansing breath and start over.

You have to find the main reason that makes you feel this way. For some people just some breathing exercises work fine but if there is a deeper rut to that feeling, it is more important to work on that first rather than just on the surface

On my personal account, I find that self expression is the best way to go. Writing a song, poem, story, or even just a journal entry about what you are feeling often times can help you get your mind and thoughts in order again.

I keep from over-reacting by putting off my response. I was taught that when something 'happens' that would cause a reaction in me - that I could - as a rule - purposely not react in the moment and giving it three days to deepen. I've noticed that by doing that, it gives ample time to think and feel about it and I have realized every time that the response I give after 3 days is very different from the over-reaction that I might succumb to if I don't honor my own lessons, of which this is one.

try to do breathing exercises and count to 10 or 100. talk to someone and think of the positives and not the negatives.

Telling your mind to calm and thinking if you are over reacting. You are the only person to whom the mind is always honest.

You can try to reflect on what you're thinking or acting out before you actually do it. Sometimes impulsive responses become overreactions.

If you are standing than sit,if sitting than lay down.Take water.Try to think about the consequences and realize that anger will harm your health.

I would recommend Dialectical Behavioral Therapy skills and Mindfulness above all else. They have helped me a lot.