Life is not orderly. No matter how we try to make life so, right in the middle of it we die, lose a leg, fall in love, drop a jar of applesauce.
If you feel bored or uncomfortable as you're writing, ask yourself what's bothering you and write about that. Sometimes your creative energy is like water in a kinked hose, and before thoughts can flow on the topic at hand, you have to straighten the hose by attending to whatever is preoccupying you.
A writer's job is to give the reader a larger vision of the world.
There's no such thing as a writer's block. If you're having trouble writing, well, pick up the pen and write. No matter what, keep that hand moving. Writing is really a physical activity.