Why do you need to adhere to religion or spirituality in order to establish a framework to live by? Many atheists and agnostics find great meaning and moral guidance from frameworks that at no point involve religion or spirituality.
This is confusingly supported by a quote from C.S. Lewis making the point that it’s better to believe in something that “feels important”, whether or not it’s true.
[0] https://lukeplant.me.uk/blog/posts/what-if-none-of-it-is-tru...
Accepting that there are things it is useful to believe that are not necessarily literally true actually separates me further from Christianity, since they insist that all their beliefs are literally true, and that doubting such is grounds for eternal torture.
I'm a 2nd generation atheist who suffers from depression. Years ago I read evidence that religious practices could alleviate it. I was kind of desperate so decided to brainwash myself into becoming a believer for about a half of a year. Overall, it was pretty effective. I had to eventually disengage because of the cognitive dissonance, but the positive effects have lingered.
First and foremost the community aspect. There are countless benefits to being part of an active faith community that atheists have had a very hard time replicating.
I replicate my community where I find it. Some of it is at a brunch spot I go to regularly. Some of it is a bar that I frequent. Some of it is in annual activities with my neighbors.
I don’t need to believe in a made up Sky Daddy to be a good person, I have plenty of examples in my communities.