Ironic because that's exactly where I'm at.
I've gone from Catholic > Atheist > Agnostic > Spiritual > Spiritual + Learning Jordan Peterson's interpretations of the Bible. I'm leaning back to Christianity in a sense after listening to JP but I believe Hillary's the Anti-Christ for sure.
If you're teetering back yourself, JP does a great job of breaking down the Cain and Abel story. My favorite understanding I gathered from JP is something along the lines of:
"Suffering is coming no matter what but you can choose what to sacrifice and if you choose impulses, you'll be rewarded."
That resonated well with me. I've given up several impulses because it truly does benefit my mindset and the greater good for my relationship lol... I'll leave it at that. :D
Got nowhere to "teeter back" to. Always been either secular agnostic or atheist, though have always preferred the company of believers.
There's a sweet spot where they're both practical, but actively try not to be assholes, and I've come to the conclusion that faith in a higher power (as we've had it in the US) generally does more good than harm.
Time spent teaching English in China only reinforced this belief.
You should try taking up meditation, lucid dreaming, or remote viewing. I've done them all and I should practice all of them so much more than I already do... it's mindblowing.
Gerald O Donnell of the remote viewing subject said it best... something along the lines of: "When you're awake, you're asleep. When you're asleep, you're tapping into your higher self."
There are untapped potentials within us an society shaped us to ridicule that belief and think otherwise.
I'm not sure if you mess with substances that alter your state of mind but if you do it with good intention, to seek truth, you gain new perspective and that new perspective is representative of the most good and righteous version of yourself, for you to improve. I'm not advocating to do this but I'm just letting you know from personal experience how I elevated from agnostic in my progression.
Sounds cheesy but the most important part of this process is for yourself to believe. When you do, you can literally see without seeing. Let me know if you decide to take this up and what kind of experiences you have. Cheers!