Bad picture is bad, but...
I didn't exactly lit a #fire, but at least I got some embers from #FlintAndSteel (I was indoors, so I couldn't light kindling)
I watched the following two videos to get from "one spark every 100 strikes" to "one spark every 5-10 strikes, and sometimes they even get on the char cloth" (sorry for the youtube links)
youtube.com/watch?v=CRR8fQbVYT…
youtube.com/watch?v=3pzGMQkdeF…
The big hints from those videos were:
* keep the flint at 45° to the striker
* if you're missing the flint often, you are using the right movement :)