If You really are an Atheist. Why do you still cry out to God when times get tough?

Because maybe the person wants a God to exist so they beg for any kind of help even when no help is coming. Do you really think atheism is a choice? Then start believing deeply in santa right now. You can't believe through choice. You have to be convinced something is true. And an atheist can't force themselves to believe even if they did want someone out there that cared. Crying out is a last ditch effort for relief even when you know it's going to fail. That's why you only turn to it when all other routes have been exhausted. Same as giving up and turning to crystals or homeopathy. Humans have a drive to do anything to try and help a situation. Even when what they are doing does nothing or even has the opposite effect.
Also they are colloquialisms. And does not actually reflect a persons actual stance on anything. Like if someone says f*ck me when something bad happens they aren't literally asking for sex. This is a no atheists in foxholes argument. Which the original creators said was not an argument against atheists. It was an argument against foxholes.