BatistutaSRB: You have to load your save,not from the main menu options.
And for the dragon.Use your quen sign so it protects you from the fire.Don't really need to use it but you should if you're having trouble.At the begining run to the right and kill the guards.Then,when you have to run to the next cover,wait for a sound of dragon breathing fire out to finish and then run.No need for quen if you time it right.
Sorry I guess I am a little dense, "load from save" I am playing the game, I hit the escape button and it brings up game options , there is a difficulty QTE heading with a check mark in front of it, where is the slider to change the difficulty , i dont see one?