There are two types of people in this world - Those who find problems and those who solve problems. We need both in this world.
Some people have advocated that you should only become a problem solver, but this type of thinking has a problem with it. Without problems to solve, problems solvers have no purpose! Without problem-finders, problem-solvers can't fulfil what they do best because no one is finding things to make better. Without problem-solvers the world becomes a hopeless place in our perceptions because there are so many problems!
Both walk hand in hand along the path of insecurity called Life. So go on! Complain! Report! Demand! We need that just as much as we need the Get it Done! Do it Now! Keep your Focus!
But sometimes the problem-finders just need to shutup. Just STOP!! and relax for awhile. There are plenty of more problems to find, plenty of trouble in each day. Those will happen without your help.
And sometimes the problem-solvers just need to STOP!!! and unwind from solving the worlds problems. Life will continue whether you fix that thing or not. "No," is a good word to use.
Here's a Thai flower clipart just because I like it. From Openclipart, made by dcatcherex