"Let us rise up and be thankful, for if we didn't learn a lot today, at least we learned a little, and if we didn't learn a little, at least we didn't get sick, and if we got sick, at least we did not die; so let us all be thankful."
If you look hard enough, there is plenty to be thankful for. Gratitude is a choice of attitude. It is not limited to Thanksgiving, that just passed us, or the Holiday Season.
You are in charge of what you are thinking about, you mind as well choose something that is beneficial to you.
Studies have been conducted on the health benefits of being thankful.
More so, as a part of being an active co-creator, you attract more, if you thank more. This has nothing to do with religion, or faith, or upbringing, only to do with choice. This choice is ours.
Make the best of it.