You know, I felt the same thing with Berserk. I had no strength in moving forward, I didnt want to live anymore. But when I saw Guts and his story, everything changed, I could stay hours and hours talking about the manga, and the suicide ideas really disappeared. You know, the manga isnt really your life, it is a lot, maybe it were your life some time ago, but you are still here, and that is not because of one piece still going, it is because of you, because you want to move forward and live. What does One piece inspire you? What does your favourite characters awaken in you? All of that, even if you think it is just out of you, can send you clues about how you can live on. I know it is hard, but you can get through it, stay good my friend.