[boffinAudio]

Shipping.

Seriously, getting your code out there into the hands of users is the #1 confidence booster for all developers, everywhere.

There is no better feeling than to see the completion of a unit of exchange between the compiler and the end-user.

Another thing I do, is read, read, read. I have tens of thousands of repositories that I've checked out and had a good read of, over the decades. This is an extraordinary way of learning new things and gaining competency.