Death anxiety

My death anxiety is just too strong and nothing works. Either therapy or philosophy. I can’t handle the fact that death will become my present forever. Which in other words means that I will be feeling nothing forever. And also I can’t handle the fact that all these precious memories will be gone. Memories of my childhood, happiness and my parents smile. Also the fact no matter how far it is right now, it will become my present one day. My grandparents and my long gone ancestors would have been my age too. And they are dead. Which means I will be the same.