Where is the hope in atheism?

[(° ͡ ͜ ͡ʖ ͡ °) (ᵔᴥᵔʋ)]

Let's say I was an atheist and for some reason I wanted to kill myself. I told you that I hated my life and wanted to end it. Being an atheist, I know that there is no afterlife and I will simply cease to exist. I also know that the second law of thermodynamics proves that the universe is dying and when that time happens, all humanity will die too. So because all humanity will one day die and cease to exist, the universe will ultimately be no different than if humanity never existed at all. So who cares if my death hurts other people, they will eventually die and all memory of hurt will cease to exist. So atheist, talk me out of suicide. Why should I not kill myself? Explain why life and existence isn't futile? Good luck.