I've been there and had "I knew better" crashes too, so I understand. I suspect that this crash will partly rewire your brain's priorities, and you'll take the crash that's coming rather than make a mistake that yield's a worse crash. To the extent that crashes can be managed, it's not about rational thought as much as preconditioned actions, or what I call preflexes.

But, as I said, if the mental trauma isn't bad enough to keep you off the bike altogether, and it sounds like that's the case, then you'll be back in the groove soon enough.