While on a diet, my mood changes all day because of the number on the scale.

I've been weighing myself every morning lately, and if my weight goes up even just a little bit compared to the previous day, I feel like I've ruined my diet for no reason.

Conversely, when the numbers go down, I feel like I ate well and my mood improves all day long.

However, since daily weight fluctuations can be due to water content or food intake, I wonder if looking at the numbers every day might actually be stressful.

I'm not sure if it's a good idea to look at other criteria like waist size or clothing fit along with weight.