No wrong answers, and yours is a good one.

Written confirmation email after every phone call. Cheapest insurance there is.

Test one thing at a time. It feels slower and it is the only way to learn anything.

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

Bring a list. Embarrassment makes everyone forget things, including you.

Log dose, time and sleep. Ten seconds a day and it turns the anecdote into something you can look at.