Dear Crumpet,
Are you completely clear on the fact that everything you have ever believed in, thought about and pondered, has not given you the peace you seek? If so, and if you are sincerely unwilling to put up with the confusion and lack of relief any longer, it may be time for you to radically change the direction of your quest. Ready?
Who is it, really, that is concerned with death? Forget everything you think you know, and quietly and nonjudgmentally investigate within. Thoroughly check all the beliefs the mind presents regarding "self", and all the senses the body presents as "self", and see if you can genuinely find yourself in any of it. Such inquiry requires total honesty and an agonizing willingness to discover what is truly real, and what is not...at any cost. Thorough inner investigation can seemingly take moments or years. Don't be concerned with time. What is true??? What are you, really???
A moment will arise, an awakening to the endless and unconditional purity of that which is closer than all phenominal experience. That, which is untouched by events in time and space. That, which silently bears witness to the universe of things. That, which looks through those eyes right now. Then, you will unequivocally know what you truly are (though the mind will never be able to grasp it), and your concerns will be over.
Realization of your natural authentic Self, is all you need. It's here always. It just needs to be seen.
j