Sorry for my quick answer ....
What Type of cardio did you do?
Have you tried morning cardio for 45minutes on an empty stomach?
Hows your diet? If not so sure about it check out the diet forum they know how to make it work.
Really it's simple.... With a good diet & consistant cardio sessions you will lose fat and get leaner. Lifting weights will also help in this regard, good to see you lifting.