Frustration

I am very exhausted of people's whining and complaining about situations that they have the power to change - if you're sick of something, do something about it! Other people that surround you do not need to hear about it for the 100th time in 2 days. It's amazing how a bad attitude or unwillingness to compromise can bring everyone else down with that person - i don't want to go down into the mud with them - i hate fighting to get out of it because it's exhausting. I Don't want to keep going through the cycle with these people - how to tell them to stop being so petty and get over it?