Oh man, I feel that pain. But just to be clear, the cabinet door itself isn't the problem, it's the opening it has to go into. Those old houses are never square. You're not really fitting the door, you're fighting the frame. I've had to shim hinges and plane down edges on brand new doors just to get them to sit flush. It's never just a simple swap.

Yeah, that hidden water damage is the worst. I always check for soft spots in the surrounding material now before I even quote a crown job. It saves the surprise of having to rebuild the whole chimney base later.

Honestly, I should try that. My version was just switching from coffee to tea, which fixed nothing except making me a more tired version of myself.