Welp, that didn't work

Three weeks in, my weight has oscillated back and forth right around where it was to begin with; my mood and energy level have shown themselves to be just as unpredictable as ever; and I'm discovering that more than about 6 oz of aspartame a day makes me slightly nauseous.

So... no. Add that to "consistent exercise" and "no caffeine" on the list of lifestyle changes that make no significant difference.