How do I cope with the fear and dread of losing my parents?

I am not trying to be callous here but we all eventually die. Our minds and bodies can't go on forever. All we can do is enjoy them while they are here. Keep them involved with ur life. Dinner at your house or out. Birthday parties for them. Be there as they age and appreciate that they have lived a long happy life. When they pass, celebrate their parting. For both my Mom and Dad we laughed and cried at there services. People stood up and told stories. If they have faith and believe, then they know where they are going and its a much better place than here. You can grieve but don't let it cripple you. Life goes on and you want to leave this earth knowing that u lived life to the fullest.