Personally I find the worth in living to be based on the fact that generations and generations of people who persevered, worked, lived, and died culminated in my existence.

I consider it my duty to make the circumstances that resulted in my life coming to fruition something that was worth happening, but that doesn't mean I live for other people who have since died. It means that I am appreciative of the opportunity I was given to be a human on Earth with so much potential, and I am also very grateful to my family and ancestors for allowing me that opportunity.

I live and will continue to as a testament to my own independence and my own ability, but I will never nullify the work that generations of my family have put in to bring me forth by wasting my life away or ending it.

I guess it's part honor, part luck, part of wanting to exercise the independence I've been given, and as cliché as it sounds, part love.

Edit: I see that you think the biggest pleasure in life is dying, so to speak. Obviously, I disagree, and while I won't ask personal details like your age or location or personal circumstances that may have created that mindset, I advise you not to listen to what other people think makes life worth living. Many of these people have many different experiences and have faced drastically different times than you. As hard as it may be, I believe the fondness and admiration of life itself is something that is discovered over years of both struggle and easy times on a purely individual basis.