I recently heard somewhere that an effective way of avoiding stress of rapidly changing life situations is to regard the change as a normal, and even desirable state. There is an analogy with downhill skiing, which many people enjoy. When you do downhill, your immediate environment changes very rapidly, things come into your field of view quickly, forcing you to constantly adapt. But that is is perfectly normal and expected. In fact, this is what makes skiing fun. So in everyday life, constant change is the norm too, rather than the exception. We just need to learn to ride it (or roll with it, depending on your skill level).