I’ve tried many different brands before but every pencil I have starts smudging and breaking into the sharpener just before it gets sharp. I’m not sure what am I doing wrong, it’s blunt then it breaks and makes a mess inside the sharpener and on my hand. Am I supposed to use a specific type of sharpener or am I missing any other trick? I would still prefer pencils over the pens as they run out too fast. Thanks for any suggestions.