If you can find the time, I'd be curious as to your own history you mentioned of 18-28, like when did you start going in a different direction than non-belief.
For myself I think the major thing, is to not take this too seriously. When it was all about Hell and Satan and Judgement, that caused many sleepless nights. I actually had to open my mind to step away from that. Now I see myself at a similar spot, like I'm opening my mind again, and there are some growing pains. I've never been able to "sit still" when it comes to thinking of these big issues, I think I have found a way of seeing things that I'm comfortable with, but I'm always nudged forward.
This time I'm not so afraid of going to Hell or any of that negative stuff. I believe the Universe is much more reasonable, impartial, and "meaningless" than I did when I was a terrified Christian, and much more interesing, and mysterious, than I did when I was just beginning to learn about science and the secular viewpoint.
I have to experience it for myself, like you mentioned.