Need practice

We bruleed the top of two of our creme brulees last night - using the blow torch I'd got for Christmas. The one I did I totally burnt the sugar, Peter did a bit better (he went second so was able to learn from my mistakes). I think the big thing we need to figure out is how much sugar to put on top to melt for the brulee, so we get a decent layer of toffee, but don't burn it - the amount the recipe states is way too much, hence why mine burnt so badly. We still have 6 more ramkins of creme to practice bruleeing on, hopefully by the last one we will have a decent technique (we've now watched a couple of YouTube videos to get some tips).