When people complain, they never find the thing they are looking for. Because the moment they do find it, they go back to complaining about the next thing.
The qualm has never been about complaining, it is the habit that is more disastrous.
You are always looking for what is not working. You always find what you are looking for.
A better way of life is to look for ways you can improve the thing you are complaining about. You almost always find it, or find something better, or learn to live with it.
Life is too short to live by focusing only on lack. You didn’t sign up to be so sighed down.