Congratulations, Jewels, on your great success!! Woo hoo!

As for your recent plateau, just ride it out. There's been a lot of great stuff written about the dreaded things both here and elsewhere so I'd try doing a search, but have you tried shaking things up a bit? Switching up your exercise routine, changing your carbs to protein ratio, cycling your calories...? Another thing might be to incorporate resistance training into your routine (or increase it if you already do it) as building muscle raises your metabolism so your burning more calories, and it would also reduce your body fat percentage -- which is ALL good!
I'm sure you'll bust through that plateau in no time at all! Keep up the good work, and don't lose faith!