I know it's perhaps not that helpful for you, but I personally care more about the experience of playing, so knowing potential outcomes doesn't really ruin it for me. Playing through the scenes and getting to experience them myself firsthand with my character is worth more.
I'd tell you to keep playing, but your feelings are valid, and if you genuinely feel like you can't continue, then that's sad, but that's the end.
Given how much spoiler-y content has become so widespread across fan spaces, I'd really recommend staying away from fan spaces on social media and the like, especially if it's a place where people aren't good at tagging spoilers.