"I don't need a proofreader, much less a native-speaking proofreader"—are you sure about that? Evidence to the contrary would indicate we all need proofreaders, especially when writing in a language other than our native language—no matter how short your copy is.
No one is immune from the curve balls life throws at us. All we can do is try to adapt and roll with the punches. Here's my 18-month update about how my unplanned career change is going, including a few personal updates.