I cant do this boss no matter how hard I try

its always the stupid eye coming at the worst times

like it comes exactly as there is a chalk passing buy and I just hit it

is it just bad luck or skill I dont know but all I know is that some of these deaths have been from the most unpredictable and unlucky blue eye and chalk combos 

whenever I get lucky with the blue eye I get pretty close to the end so Im pretty sure its bad luck and not a skill issue but maybe there is something that can help me even further that I dont know about (I already know about the neko maneko)