I need help with a research paper.

I am currently writing a paper on the Heart of Darkness and my topic is to explain how Death and Suicide are symbolized throughout the book. I am having a bit of trouble remebering what exactly happened during the first part of the book. I will put up what i have so far which is the thesis statement and introductory paragraph. any help you can offer would be greatly appreciated. Thank you.

"Death, a feeling that is devoid of any life, the instance of not living, to be dead. Suicide is to take one’s own life through means of pain or narcotics. Either way your body dies while your mind is trapped in a void of terror. As your body slowly loses all feeling and becomes numb from the body cells dying off slowly your mind is left to wander during those agonizing moments in which you realize that there is nothing that you can do to change this decision. There is not one thing that you can say, not one person that can give you any drug or other elixir, no magic or faith that can bring you back. It is during these last moments of life that we realize just how fragile, valuable, and meaningful life is. Throughout Heart of Darkness we can find minute details that show life being snuffed out from underneath our gazes. They may even be so minute that we don’t even notice them at first. We may only notice the deaths of the humans and not of the slow death of the plant and animal life around you as the author spins his weary time ridden tale.

The first instance of death we encounter is the..."