My handwriting has deteriorated to a point where only my wife can figure out what it says. My efforts to handprint were unsuccessful but they led me to a way to enlarge the letters and greatly improve their clarity. I normally hold a pen or pencil between my thumb and forefinger resting on and guided by my third finger. If I hold it between my forefinger and third finger and use my thumb to guide it my writing is enlarged and easily readable. Try it and let me know if it works that way for you. Good luck.