Sometimes a new lipstick and nail polish can give you a lift, even if they come from the drug store. Backsliding is No Excuse to Give Up OK, so you can't believe that you ate a whole pint, or a quart, of ice cream. Or you succumbed to a Big Mac with double fries. It's a big temptation to say, oh, the hell with it. And don't indulge in self-loathing.
Nobody's perfect, and everybody slips up now and then.
The important thing is to keep the big picture in mind, and just pick up and forge ahead. Don't dwell on it.