Ask for the longer appointment slot. Ten minutes is not enough for a complex history and pretending otherwise wastes both your time.

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

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

An inconclusive account is useful if it stops the next person mistaking a story for a controlled comparison.

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

Test one thing at a time. It feels slower and it is the only way to learn anything. Tolerance was my main issue with L-tyrosine too.