I wonder if some people were drawn to Athiesm because they had a bad experience with religion or because they had a trauma in their lives that religion didn't help them with, and that is why they have a higher suicide rate? Correlation does not prove causation.
I guess I don't get your reasoning. Either God exists or he doesn't, whether that make you happier or not doesn't change the facts. I do think some people use religion as a sort of crutch, because it provides certainty in an uncertain world. I don't personally have a problem with that, if that works for you in your life and makes you happy, just be honest with yourself, it's not that God is leading you to this, just your own psyche.
I think the Athiesm label has a negative connotation to some people, so maybe that is what is making you uncomfortable. There are some Athiest that are critical and negative, and they tend to be the most vocal, so I don't often tell people I am one (unless I can explain it to them), because I do think it gives them a the wrong impression of me. I have been reading up on humanism, I think it is probably a better description of what I believe.
Humanism is a progressive philosophy of life that, without theism and other supernatural beliefs, affirms our ability and responsibility to lead ethical lives of personal fulfillment that aspire to the greater good of humanity.