Even severe stress can be handled as follows:

1. Counteract the body aspects. Walk about, break any freezing of movements. Be you, let your body walk about and do things. A family of psych treatments, called EMDR (eye movement desensitization and reprocessing), simply takes advantage of our body's built-in stress handlers. So walk about and look around, preferably in a nice natural setting. Sense your whole body, your dreambody, each step and shoulder movement as you look from side to side while reviewing whatever caused the stress. As you move your eyes back and forth, imagine that your conscious issues are a handful of salt and that your combined aware-moving-thinking is flinging the salt into a big subconscious river. This moving about works just like your REM sleep in processing your issues (and can replace REM sleep somewhat if that is being disturbed by your issues). You are processing the matter so your various memories can also process it and adjust, instead of locking you into sickness and disease producing patterns.
If you are able to, you might also follow your channels (see Dreambody in the Operacy Toolkit) to discover any treasures that the processing might be unearthing for you. The EMDR experts, who normally want to work in their offices or other controlled settings, simulate this by moving a light back and forth in front of you, or alternately tapping your left and right knees/shoulders while you relive the experience.
2. Re expose yourself to the feared situation, and a variety of suitable similar mimics.
3. Relive that past threat/happening while seeing that things are okay right here and now. After one particularly bad bear scare I read up on grizzlies, asked lots of questions, then spent lots of time out in the bush closely observing grizzlies. I even spent time safely close (that's a relative term) to sows with cubs.
4. Repeat and repeat. Teach your mind body that things are okay. And try to go beyond to exploring the opportunities offered by each crisis. I role modeled on grizzlies, they're very well adapted to the natural environment. Repeat by cultural association, interact with your peers to grow comfort in the area.


A holistic meditation
Focus your awareness on a particular tree or herb near you. Do not just look at it instead, merge with it, touch it, become it. Imagine you are that plant.
Imagine experiencing the world as it experiences the world.
-- Selena Fox