The Funnel Bottleneck Guide

Your funnel was working and now it is not, and you have no method for finding out which part of it broke.
You have been stacking new actions on top of a bad one, so you are now several moves from whatever was producing the result and cannot get back.
You are guessing at the fix instead of pulling the numbers, which means you are spending effort on the parts of the funnel that were never the problem.
You are drilling into tiny sub-stats while the parent stat above them is the thing actually choked.
Your click-through rate looks incredible and nothing converts, and nobody has told you that pattern is a known glitch rather than a win.
Every stat dropped at once and you are treating it as a funnel problem, when a whole-funnel collapse points somewhere else entirely.

The one contracted stat, named, from a side-by-side of your own numbers when it worked against your numbers now.
The full stat ladder for a call funnel in order, from CPM down to AOV, so you know exactly what to pull and in what sequence.
A rule for when to go deeper and when not to, so you stop auditing question-level drop-off on a stat that is performing fine.
The placement fix for the bot-traffic glitch, which is normally something that stays behind the paywall.
The difference between a mechanical problem and an audience problem, and the test that tells you which one you have.
Two named moves for when everything nukes at once, plus how to tell whether the audience you are running on can still be held or is finished.

The guide teaches the diagnostic method, not a promise of results. What you achieve depends on your own offer, market, traffic, and execution.