accept death

i get so scared sometimes just thinking about death i start freaking out and crying. i go crazy, run around like a little kid and kiss and hug my own kids, while they are sleeping usually. it seems to only happen at night, when i ahve time to think and its quite. i ant accept the fact that one day there will be no more, how can that be? how can I just NOT BE? it just doesnt make sense to me. what happens? i dont believe in life after death, or anything of that sort, and i truely wished i did. i hope to be proven wrong one day. but my brain says it isnt so. i dont want to die!!!!!!