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Thank you for your kind words and your interest in my work. What are you missing? Most likely many many years of trial and error. It took me countless experiments and a lot of time and effort to finally get it to work as it does now...

for sure that is what I am missing , years of practice, :) but I think it has to be something about the pencils too ,because i tried 4 b an 8 b and it doesn't even leave a mark

Finding a way for something to work can be very frustrating at first. You need to think outside the box and try different roads. Eventually you will find your very own approach :-)