Control is all you need..If you know how to control yourself, slimming is easy, eating is like mens habit of smoking..if you are determined to get slim, then first learn how to control yourself, self dicipline, its like controlling a little child from sweets and trying to persuade them to eat fruits and veggies, your best weapon is self control, be a good girl, and your worst enemies are fats(fries),sweets, carbonated drinks or alchol(which have hidden sugars) and cold fizzy drinks.
I do not suggest alot of exercise which triggers ;you to get hungry and wanting cold drinks, moderate walking regularly and swimming is the best exercise than going to the gym and exerting effort then cramming for foods. be wise,to help yourself to control, dont buy foods which are above donts, and buy only a good for two days to consume fruits and veggies to keep them fresh.Drink plenty of fruit juices,like pineapple which is rich in vit. C and antioxidant, or alot of citrus juice.Substitute meat to legumes or fish alternately.
If you follow these, i guarantee you that in a month, you will see a big difference in your weight, these i cant determine how much lbs or kilos you will lose because, our body varies, specially if you are now really huge to start, but believe me, if you control, you lose....
Goodluck, for teas, take oolong tea,, see my thread about oolong tea..

"There's nothing we can do to change the past, if it teaches  you a lesson profit from it then, forget it."