Not a simple question at all...it is the question that drives all humans to learn, explore and discover. It is the answer that everyone seeks.
My own beliefs have changed over the years as I've done that learning, exploring and discovering. Funny thing is, the more I've learned, the more I've revisited to the beginning.
In answer to the question itself, is there life after death, yes, I now believe it to be so. What form does that take is the question that can only be taken on one's own faith. In mine, I believe that the many religious texts are meant to teach us what we cannot fully comprehend....yet. It's bigger than the simple words. We are just beginning to understand the quantum level of things, and believe that's all there in the texts as well.
My current belief is that as part of a greater consciousness which is the Universal Divine, we are intact in what we call our "soul". The soul is, in simple terms, the packet of who we are in conscious form out there in the universe as part of that Whole. We simply live in the bodies here like a radio receiving the transmission of conscious waves. When the soul leaves this body due to death of the receiver, we then cross back to that state of being in the dimension some may call Heaven, as who we are. I believe my core self will remain "me", but not necessarily just as the named person "Debi." I may be "more" than just this lifetime.
Hell? We put ourselves there with our own actions. It's not a place as much as it is a state of being, no matter what dimension we're in.
I could go on, but then I'd being doing a "Tex Dan" post!