I've reached an inflexion point

Writing my first novel (my first one that I'm determined I will finish anyhow) and I'm being an exploration writer about it (used to write lots of screenplays but the meticulous planning killed the fun for me). And I have reached what I would call the climax of the novel.

And it's a climax that could go so many different ways - anyone could make it or not make it (it's fairly bleak so not afraid to off anyone and everyone). I just do not know how to make and stick to a decision, I'm paralysed by choice.