With each challenge I overcome, I am becoming an expert in my field.

A plumber puts a hand on a pipe, says it is the valve, is right, and cannot fully explain how.

Underneath that is a flooded kitchen in 2004 that cost him a weekend and some pride. Expertise is largely a private library of things that have already gone wrong, catalogued by the person they went wrong for.

Which means the bad week you are having is not an interruption to becoming good at this.

It is how the library gets stocked, and the entries acquired painfully are the ones you never have to look up twice.