How can I avoid crying or losing it in public?

Try to relax and distract yourself. I usually start crying when I'm deep in thoughts about something that makes me sad, but I'm often able to control my feelings when I don't bother too much about these thoughts. However, I don't find it embarrassing to cry in public. Even though I'm male, I cried a couple of times in public.

Personally, I bite down on my tongue or lip, or scratch my arm with my nails. This redirects attention to a sudden sharp physical pain rather than focusing on what's upsetting you. Also, I find that putting a conscious effort into relaxing my jaw and throat really helps, though I'm not entirely sure on this one.

i personally count to ten and take deep breath and think what can i do? can i change anything? if no then i worry less and if yes i act to change

Find a private area(toilet or something),put a cloth/bag or something at you mouth,scream your lungs out!

Become fully aware of the surge of emotion as it comes over you. Embrace the surge and let it wash over you. Don't do any justifying in your head, don't think about it, feel it. Try not to fear the outcome of letting it all out in Public, sometimes we have to cry, but if you can accept that fact it will most likely subside before it gets out of your control. Accept the emotion, no matter how uncomfortable or negative and fully experience, it won't be able to build if you watch it.

Focus on your breathing, move your eyes to control your tears, distract yourself with a physical movement, take a sip of water, and think about something that will need your absolute focus.

Take a deep breath, avoid eye contact, count to ten, close your eyes. Re-open, forget and move on until you're home where you can face it.

I think it is very hard to avoid crying or breaking down in public, one sometimes can't control it. First we gotta remember it is not a sign of weakness. However, i would go to the toilet and then come back.

If you feel a surge of emotion try looking out for an isolated place or a friend who can support you at that time. If you are in a meeting, excuse yourself for a while and come back when you feel you can face them again. Try having control over your emotions and maintain boundaries with others so that no one tries to hurt you again.

First, it's okay to cry in public sometime. I understand you don't want to though. You can excuse yourself and go to the bathroom to cry there, if you really feel like you have to and it will help you, or you'll just stay there for a little while to calm yourself. I think that's the best option.