This is the correct amount of effort for a thread like this.

Small wins count. Walking to the mailbox is a data point.

It gets smaller. Not easy, smaller. That distinction kept me going.

File early. The window is shorter than people think and it starts at the transaction.

Test one thing at a time. It feels slower and it is the only way to learn anything. Not on KPV but the pattern is familiar.

You are not imagining it and you are not being difficult. Document it and take the document in.

Bring a list. Embarrassment makes everyone forget things, including you. Side effects was my main issue with a named superintendent pharmacist too.