Just to share my own thoughts on suicide - and this is probably going to sound a bit weird, but I stick around for the sake of my ancestors.
Because I'm a mother and I know how hard it is to bring up kids and see them suffer in any way, how I just want them to be happy, and then I think about my own parents and theirs, and how I'm the final product of all these generations of folks giving a little of themselves for the sake of the next generation. And I sort of imagine the ghosts of my ancestors watching me and how disappointed they would be if I died prematurely when there might still be ways I could contribute a bit of goodness to the world. And even if I felt I had nothing to contribute, and there was no way to make them proud, I know that they would understand and want me to carry on and be as happy as I can be.
Sometimes there is no reason to live except just that - to enjoy what small things we can, simply because we're here and we can. It's what our ancestors would have wanted.
Sorry, I'm not sure if you'll think that helpful or just ridiculous