OK, here are some things that I tell people to try.
Listen to music. Many people when going through the different stages of PTSD forget that things like music exist. Play either uplifting or soothing music in the background at gradually increasing levels. Music effects moods. Even when you are barely aware that it is there.
Add more humor to your life. Television, movies, anything. These can be done in the background too, or directly.
Another thing is to go out and try something new, anything new. Any time that you do something new, it takes more concentration than anything that you already know.
Now, for relaxation, music, meditation, reading, anything that works. I know that when anxiety levels are high, it's hard to do most of the things that people would normally do to relax.
Another thing that I think all psychologists will agree with is to do physical things. Emotions can not exist without the body being in various physical states. If the body is tired from physical activities, high energy emotions are not capable of being produced.
There are other things that you can add to your life that may help also. Such as some of the suggestions that are popular in self help books and different things. The power of positive thinking. The seven healthy habits. Other things like that. Look in the mirror and tell yourself something good every day, etc..
I, myself find it almost impossible to relax when anxiety levels are high. The main thing that works in those times is the physical activity. Doing the rest of these things helps to reduce how often levels get that high and allows for more relaxation during other time periods. This allows the body to remain in a more constant and stable state.
One more thing that many people forget is to drink a lot of water. Yes, water helps. Water always helps the body to stabalize.
That's just depressing. Last world Series Win. 1918 