I know I'm late to this, but I was in that club, too. I was raised in a mixed-faith household, Buddhist and Christian, and I honestly think a big part of the reason I always gravitated more towards Buddhism is that nothing's really permanent in it. Nirvana kind of is, I guess, but even then you could always become a bodhisattva and reenter samsara (the cycle of rebirth) to help others. Hell exists in the tradition I was raised in, kind of, but that's also not permanent--you just might get stuck there for a bit until you work through some shit.
It's really very reassuring to me, the combination of the idea that some part of me (but not a recognizable one) will continue forever, but not always in the same place or in the same way.