Sorry about your fingers.
Where was your ball puller?
You could probably have just moved the flint forward in the jaws a little. Mine did that the other day. It was clacking and opening the frizzen/pan, but no spark. I only let that happen twice. Then I slid the flint and leather forward and stuck a bit of one of the round thick toothpicks behind it. I got at least 5 more shots, then kidnapped with the frizzen and got 5 more. I was done for the day at that point.
What tool you use will depend on what technique you like. Pressure flaking or percussion flaking. A piece of brass with a tiny notch cut in it, like shown above, or a bit of antler time that comes to a dull point, are both great for pressure flaking. One of those little brass knapping hammers is great for percussion.