Don’t rule out Nietzsche either, with his ideas on the creation of your moral system, becoming a “god” unto yourself, exercising will through art, and will-to-power by helping others (and thus altering their lives and will in a much more effective way than harming them as a “show of force” / what most think of as power). I highly recommend studying his thinking very deeply when anyone abandons the idea of god. And remember, even though god is dead, in thus spoke Zarathustra the character (representing one of us, who knows that god is dead) never told that to the monk, but rather envied his ability to believe. Believing in a god is by far better than taking that responsibility on yourself, but for us, it is no longer possible. We ought to envy that kind of belief.
But at the same time, any dogma that harms us or others (Christo-fascism, all forms of theocracy, etc.) is objectively bad except to those in charge of it. Which is no one except one who “speaks for god,” and protestant Christianity has abandoned such a figure and taken on a life of its’ own. It helps no one, not even a person in power, and thus should be abolished.
But as I said, I envy those who hold other beliefs. For now we must take the responsibilities of god onto our own shoulders.