She’s a MILF on the move! Two months after filing for divorce from Ben Affleck, Jennifer Garner, 45, has no time for wallowing. Sources say she’s hired a trainer and is on a superstrict low-carb diet, determined to get back into Alias-level fighting shape. “Jen’s been on this regime six weeks and she’s already dropped 10 pounds,” a friend says. “She says her stomach hasn’t been this flat since before having kids!” The pal says the star has a newfound confidence and “is starting to get excited about dating again.” Get it, girl!