There are some good answers here !
NoMercy ... yep, cut the carbs (unless you are going to use them for energy)
Molly ... the plank ... Ouch !! (ps. go to school !)
Toni ... yes, keeping a good posture will train your body to look after the muscles that it needs, and to lose the fat that it doesn't.
wingnut ... jogging routine ... good you!
I would only add ...
Think, and feel, energised ... all the time!
Our bodies are quite clever, and they respond to input.
If we think of an image, our brain files it away for us.
(by the way ... do NOT think of an ELEPHANT !!!)
If we jog a lot, our bodies realise that we will probably do it again, and starts to strengthen the useful muscle groups, and break down body fat, which has suddenly become a hinderance.
(nb. Your body fat is NOT a hinderance if you are just on a diet ... so why would your body bother to break it down!)
And if you stand tall ("Walk tall, girls!" our Headmistress used to say, every morning) then your body will start to change itself from a "slouchy, fat" body, into a tall, elegant body.
So ... "Walk tall, girls!"
(and stop thinking about that ELEPHANT !)