I can SO feel your pain! I have been struggling with losing "that last 10 pounds" for months now and am incredibly frustrated by it. Used to be I could easily drop 5 lbs. Now a week of deprivation usually yields about a pound, and after a couple good meals (read: having fun and enjoying my food instead of suffering) over the weekend, it's right back! ACK! "Filling up on fruits and veggies" does nothing for me. My stomach feels like I just ate a bunch of paper but I'm STILL hungry! Plus having kids doesn't help at all. We're always at some sort of party or event with lots of tempting, 'forbidden' food.
My older sister, who's a total beanpole, swears by Weight Watchers online. When you think about it, it's really just a well-regulated form of portion control, which seems to be the best approach for me. I also bought Jillian Michaels' '30 Day Shred' exercise video, which packs a lot of workout into a little bit of time. Easier than trying to get to the gym.
Good luck --you're not alone!