I mean, I'm not trying to be bleak, but do you have any evidence that any of the religions out there can deliver on their promises? Like I'd be somewhat inclined to listen, but extraordinary claims and all that...
I am not the one you're asking but I was born an atheist and discovered religion as an adult, through intellect. Here's my answer from that background.
Ready? The answer is "we don't know." There may be a Gd, there may not be. There may be meaning, there may not be. You can't really know either way.
The answer is that it doesn't matter. The question is what kind of life do you want to live. One that lives as if there's meaning or one that lives as if there isn't? I know my answer. If I get to the end and turns out the meaning was just something I made for myself, and that there's nothing special about my children and my values other than my deep affinity for them... that'd still be a pretty great life.