I don't truly know what happens to us after death but I believe it's likely nothing so I want to have as much of something as possible. As I heard once, suicide is a permanent solution to what can only be a temporary problem. We all die in the end anyway.
Also, as far as lives go mine is pretty good. At least I think so. I don't have any health problems, I have a job that pays more than enough for me to live comfortably, a house with a lot of possessions I like in it, and a cat.
It could be better. There's a few things I can think of that would improve it. Some are pretty much impossible and some would be very difficult but there's some that are probably within my reach, I'm just not putting in the effort to try to attain them.