Why do I feel like I'm the only thing holding this together?

You can see the failure before it happens. That is a real skill, earned, not imagined. But somewhere along the way you decided the structure only holds because you are the one watching it. That belief is not skill. It is fear dressed as competence. Your team did not ask you to carry this alone. You likely took it on without noticing, because catching the flaw yourself felt safer than trusting someone else to catch it. Every time you spot the crack first, you prove the story again: only you can. The story gets heavier each time you prove it. You built this cage. You can take it apart the same way. The work ahead is not sharper inspection. You already have that. The work is handing the inspection to someone else, on purpose, and watching what actually happens when you do.