Totally agree that yoga is one of the best weight loss exercises there is.
Yoga helps a lot loosing weight. It doesn't matter how much you want to lose it actually maintains you according your body.
Can you help us out with a bit more information? Like how much weight do you need to lose? What things have you tried so far?
We can help calculate your daily calorie needs and give you tips on what to eat/what not to eat.
The first thing I'll say is, if you drink soda, stop and replace it with water.
Are you exercising at all? If so, what type?