Our Lord has already advised us what to ask for. Prosperity isn’t on the list.
My belief also is that God wants us to be happy — but that we usually don’t know what’s best for us. Ultimately, happiness is nothing less than holiness. Ask for that.
Something really weird about people claiming to worship a crucified God, who complain when they find themselves nailed to a Cross.
And what happens when your life falls apart? When you have to face disease or bankruptcy? Where will your god be then?