I agree with Marsday. It's all about your own perception.
1 - Reasonable use of this can help (turn the asterisk into a U)
2 - Let go of your emotions, even when sober. Some cultures might be better at this than others.
3 - Try to find ways to discipline yourself easily. I find that a lot of stress is self-generated, not so much in psychological terms but in practical ones. That general slack of postponing, dealing with issues only when they become catastrophic, and thus everything becomes catastrophic is a major issue for most people at all levels.
4 - Take up some extreme sport as a past-time. I've been doing on and off rock climbing for some 2-3 years now. Once you get used to the risks of moving on a rock face, at the limit of your technical and physical ability and in situations when cocking it up might result in a fall of some 7-8 metres and maybe some pain, anything that your worklife can throw at you seems a non-issue all of a sudden. Maybe...
5 - Find the right balance between quantity and intensity of the work you do. Some people prefer to be revved up throughout their work so long as it's over with quickly and doesn't overspill in the weekend. Some others don't mind longer hours and taking some work at home to be done in peace, if the pace can of the day can be slower
6 - Come to terms with the fact that you can't do everything (and) perfectly all the time. Learn to prioritise and to delegate. Find the stuff that yields the most results and do it, forget about the rest.
Oh, I'm the latter type of person BEP described, I guess it was pretty clear...