BDF,
I hear exactly what you are saying and I do tend to believe that there is no god. But who/what do I thank for the many wonderful and glorious things I have in this life I have been given? Life is a gift. Who do I thank?
No one, or if you feel the need to be thankful, it is just an old habit you need to change or make up a god and thank him if it makes you feel better. Now I'm not saying there is no god, but if there is one I'm sure he's not as petty as the biblical one(he got tribal written all over him), that wants to be worshipped and praised or else you're toast.