Want to be rich- avoid complaining.

Complaining means, you are attracting crap in your life. It's a life impeding negative trait.

Remmeber that proverb

One can understand his view point since complaining and distressing oneself is nothing but bringing out negative energy and a waste of time. It is always better to look at the root cause of your problems and analyse the reason for it rather than fret! 

Instead of complaining Rose Bush is full of thorns, be happy that the thorn bush has roses. Instead of complaining about the darkness , light a lamp to drive away the darkness.