First I'd take deep breath knowing everything is about to end: all the pain, all the suffering, all the questions. That's when I'd know: I had made the right decision. I would look down my window, at both the nature and the city for the last time. We live in quite an amazing world, if we ignore the majority of people. Then I would play some music and I would silly dance for a little. I would also contemplate of my 'adventures', the good memories I've made. I would wonder what comes next. But I don't think I would matter all that much.
Basically I would spend my last hour on this Earth with myself, dwelling on the good things, acknowledging what has been and what is to come. And when the time would come, I would go to my bed, settle in, wrap myself in my cozy, brown-striped blanked, lay my troubled head on my pillow, and close my eyes one last time.
And then I'd wait.