I'm probably not the best person to give advise on this sense I feel the exact same way, but maybe some of the things that take the edge off for me and give me some hope might do the same for you.
I looked into near death experiences because that's probably as close as we can get to first hand accounts of what happens when we die. I found this book interesting; though, the author seems a little coo-coo in regards to other subjects in my opinion. I couldn't find huge flaws in his logic and other people seem to have confirmed most of the observations in this book. I believe some of the information on the Wikipedia page is cited from Moody's book but it can't all be, so I'll link that too. People have offered purely scientific explanations for what people see when they die, but, for me, it doesn't seem to explain everything.
Here is the book: http://selfdefinition.org/afterlife/Raymond-Moody-Life-After-Life.pdf
And here are a couple of websites that, for the most part, observe the same things as the author of that book: http://science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/near-death-experience.htm
These things, for me, were more helpful than religions texts, but if you believe a particular religion to be the truth, that is probably a good place to take some comfort too.
Some advise when poking around on the internet about this stuff: don't trust people. lol Some people, understandably I suppose, are biased, and would like very much to convince you one way or the other. Everything with a grain of salt, you know?
I'm still afraid of death, just like you, but things like the stories people tell about their experiences with almost dying and how it changes their lives brings me a little hope and helps take the edge off.
I hope those things aren't too stressful to read. It took a lot of stress and hopelessness to make me go and read them because I was so afraid they would be stupid and scare me worse. Eventually, not looking for answers was just as bad as having bad answers so I got myself to read them. If it wigs you out to read things like that, maybe read them with someone. I read them with my boyfriend.