Imagine if once a year, your boss sat you down and went "Hey, you did a terrible job this year. No promotion." You might ask him why he didn't give you any fee

Imagine if once a year, your boss sat you down and went "Hey, you did a terrible job this year. No promotion." You might ask him why he didn't give you any feedback earlier so you could have fixed the issue. "Oh, well I only give feedback once a year since it is hard to do". You need regular (weekly, biweekly) feedback on your diet.