How dreadfully frustrating for you!! My advice is this. All of these pre packaged deals only do one thing, and that's control calories. If you have only lost a little over 2kgs in 6months, I think that you must be doing something wrong. I cant' see how you are eating strictly to their rules, exercising and doing all the right things and not losing weight. I know when I have said this in the past it's when I have cheated and have been binging and lying to myself.
Do you know the 'diet' statistics Shep? A MAJORITY of them don't work in the long term. You may lose weight initially, just to put it all back on and more.
Until you get to the root of WHY you are overweight in the first place, and address those issues, you will always be big. I am doing the Betalife program, which is more pschological programing, than dieting. There are no limits, you can eat anything, you just follow the steps, and the more you follow, the more successful you will be. I find the more restrictions put on me, the more I fight the diet and eat more. Check it out, just type Betalife into Google, go to the website and have a look.
I would definatly get off the Jenny Craig bandwagon and try something else. The same dieting program isn't going to work for everyone. Don't keep using your hard earned money to buy food that isn't doing the trick.
Have you always had a weight problem? Do you love junk food? How do you think you got this way?