I think what OP means is that there should be a support group for THIS: "I was not an atheist. Now I am."
I have been an atheist all my life.
Not sure if there is enough need for such a group to exist.
However, there are a lot of atheist groups IRL and "I was not an atheist. Now I am." Is frequently a thing in all of them. It is even an acceptable greeting in all of them.
My suggestion to OP: Participate in as many atheism groups as possible IRL.
I have been an atheist all my life.
Not sure if there is enough need for such a group to exist.
However, there are a lot of atheist groups IRL and "I was not an atheist. Now I am." Is frequently a thing in all of them. It is even an acceptable greeting in all of them.
My suggestion to OP: Participate in as many atheism groups as possible IRL.