To Be honest I'm an Atheist who believes in a higher power. The thought of existence coming from nothing is purely fictional that bends all physical laws. And even if there were a higher power, it leaves me with more question than if there weren't. I believe there is a higher power, not as a being with supernatural powers but just a creator who himself is trying to make sense of the world. So I don't think leaving our problems to a higher power is the best choice at hand.
And death, I believe is similar to a WILD. When you have an astral projection or an OBE your consciences wakes out of your body and this isn't anything magical as the Unified Field Theory in mechanics says that matter came into existence from a conscientiousness. Believe me its true! OBE's happen when our body and mind shuts off while our sub-conscience is still awake which is very similar to what happens when we die. So is it possible when we die our conscience wake's up and roams the world? Quiet bizarre, but its highly possible.
And a reason why there can't be a 'hell' or 'heaven' is cause if our conscience is sent to hell after death, it is illogical because hell is supposed to give us eternal pain but as your own experience when you have an astral projection your body can't feel pain. If you try to hold something you hand passes right through.
Source: Myself, I'm 16 from India