I was at this time of living, like so many Atheists or Anti-theists, in a whirl of contradictions. I maintained that God did not exist. I was also very angry with God for not existing. I was equally angry with Him for creating a world.
In the end, i thanked God for creating us and guiding me to the right path. 

The worst moment for the atheist is when he is really thankful, and has nobody to thank :)

"Lead us to the good path and remove the sin that makes us stray and wander." (Yajurveda 40:16)

Guide to the right path (Qur'an 1)