Well. Good that you were revived and shared your experience with us!
Being born can be compared to a one in billions lottery win. We're given this time. "All we have to decide is what to do with the time that is given us". I hope you get to feel more positive about being around.
My belief is, when you're gone, you're gone. All this religion and quantum mechanics speculation about coming back is wishful thinking (it's one reason religion is so powerful. It's very hard and scary to comprehend our non existence. Religion provides a nice candy wrapped solution to all that.)
I'm not negative on it exactly, but the idea of not being revived doesn't really bug me. If that had happened, then it's whatever, I guess?
But I agree with your sentiment about using the time we're given. I don't put much thought into what happens after death other than in a purely self-entertainment, "oh that'd be a cool what-if scenario..." type of way. My goal now is to minimize my suffering and maximize my happiness to whatever extent I can. If I can make others happy too in some way as I do that, that'd be neat too.