Have you ever heard of the saying, "If you want something done right, do it yourself?" Well, while there may be some truth to that at times, it's really based in arrogance and can lead to a life filled with stress and frustration. A humble person recognizes that their way of doing things may just be different and not necessarily better.
Stress is imminent any time a person takes on the responsibility of doing everything because they actually fear it wont' be done, the "right way." There are things in life that you absolutely have to do but then there are things that are better left for someone else to do. Find the balance and you'll be proactively fighting the stress in your life.