There are countless ways to die. Some people say that your style of dying reflects your style of living. Invite your deepest fears to come out. Regard them with great tenderness. If you see horrible images of death in your mind's eye, remember that these images seek your attention, not necessarily your enactment.
Many people know their worst fear about dying.
However you answer that question, sit with the image or sound or smell or feeling of that fearsome style of dying. Keep breathing and stay in your safe channel. Let the image or sound or smell or feeling instruct you about your fear. This is not about death per se. It's about you.