you are afraid to die because you don't know where you are going? Is there life after death? well, yeah. there are many people who have gone through near death experiences, and have lived to tell about it....most of them say, they go through this dark tunnel and then they see a light at the end of this tunnel as well as celestial angels and so forth...some have even seen a beautiful place from a distance and have sensed GOD in that place, but couldn't step into the place....while others have stepped in and have come back with a message of some kind. i believe there is life after death because of these evidences...and also because I believe in God. One of the oldest books is the bible and it has alot of truth in it....it's amazing...
I think the reason you are afraid, is because you are going to face the unknown, but it doesn't have to be this way with you...when you get to know your creator in a deeper way, you will know the truth and the truth will set you free from all fears.