Hi, I'm strugling with about 15kg of weight to lose. I get all motivated for different things, last 2 days then fall off the wagon spectacularly!

So far I've done:
weight watchers
jenny craig
easyslim
sureslim
optislim (I'm seeing a 'slim' pattern here! )
water aerobics
gym membership
curves membership
walking in the am
Bigges Loser online
Calorie King
Online personal trainer

I've stuck to nothing! Why can't I stick to something? I REALLY want to lose this weight but I keep losing any willpower I had!

What's worked for you? What's been the trigger that made you stick to it? Do I need to stick things up around the house to remind me? I've even gotten hubby to take gross underwear pics of me so I can be reminded anytime I want to eat crap.... still hasn't worked!

I don't have the money to throw away for expensive things anymore, nor do I have the time to regularly go to the gym in the evenings.

Help!!!!!