When we meet real tragedy in life, we can react in two ways--either by losing hope and falling into self-destructive habits, or by using the challenge to find our inner strength
If you always put limit on everything you do, physical or anything else. It will spread into your work and into your life. There are no limits. There are only plateaus, and you must not stay there, you must go beyond them.
"Lord, Thou hast given us freedom to forget our daily troubles by nightly visits to dreamland. May we escape from mortal sorrows forever by awakening in Thee."
If you find your here and now intolerable and it makes you unhappy, you have three options: remove yourself from the situation, change it, or accept it totally.