Welcome to Atheist Nexus with its 8000 good friends.
A useful group to join, with its 125 discussions and numerous video films, is “ORIGINS” (Origins: Universe, Life, Humans, Evolution, Religion....).
One discussion (over 70 posts) is "Proud to be Atheist".
There's much to feel good about
because atheists and humanists hold the intellectual high ground—far from the mental slavery of superstitious people with their imaginary god, heaven and hell.