i am compulsed also i weigh every day i take the good with the bad because i also track my foods and it helps me to know if i am pushing enough water or maybe i had to much sodium.
as far as the new scale i had to buy a new one old one crashed. i made sure it was accurate before i stepped on it weighing a ten lb bag of rice the dogs not mine lol. that way i don't move it from where it is. found out my old scale was off by 4 lbs but i still lost total weight just not as low as i had thought. if you fear it leave it alone but don't let the scale be your only judge. let your body tell you also by the way it feels and how your clothes fit.