The published rule and the enforcement pattern are different documents. Only one of them affects you.

Sleep first. Bad night, bad day, more symptoms. Fix that before changing anything else.

Read the methods section. It is the only part that says whether the conclusion is allowed to exist.

How long before you can reasonably say something is or is not doing anything?

Take one to a pharmacist. Free, two minutes, correct. Everything else here is a hypothesis.

Silent tracking in the first week is normal. Scanning happens at hubs, not continuously.

Split orders. Two small parcels beat one large one for reasons that have nothing to do with price.