You just have to keep at it, even if you haven't seen a change for a long time, just think that the next whoosh is right around the corner. I was about to give up after a month of exercising+eating right and not seeing any significant changes. A week later, I could visibly tell that my legs, hips and face have slimmed down. And now the arm fat is FINALLY catching up and letting go little by little. Be strong and you'll see results!
