Your colleague is getting a better pay for half the work that you (think he does.
Your husband doesn’t give you enough space?
Your dad just grounded you.
Your friend is just too much in to himself.
Your ideas are limited to the book or your brain.
Your teammates do not pour their heart in to the campaigns.
My two cents to you – Complaining as a strategy does not work.
Side Note: 1/10 of the energy and time spent on complaining can actually help you get over the problem.