Oh man, this affected so many people and mostly the bride who was looking forward to seeing her memories even in the future. I totally understand why you didn't pick up your camera for a while. You must have felt horrible. I know I would. But you're right, it's a lesson learned. Every trade has its risks but the good thing is that we can learn to manage the risk. So don't be discouraged. Get out there and do more work, and have a backup :)