Hey beliter!
I'd say, you need more of a plan that Slimquick for 1 week.

Of course, many folks come here to 3FC and have tried everything and nothing works for them. All I can say is, you have to be willing to change!
Many successful losers here have found that they have to see this as a change in how they live and eat, rather than just a quick weight-loss remedy. There are many plans to choose from, but you must pick one and stay with it--for more than 2 weeks! for more than a month! Gosh! maybe forever!
So, what would work for you? If you don't have the money for Jenny Craig or Nutrisystem, maybe calorie counting. Or you could go back to one of the programs you've already tried--like WW--and this time go to some meetings instead of being on your own with it. Or, perhaps South Beach would work if you stayed with it longer.
Remember, it's not about losing weight fast--it's about not regaining it!
Look around-- 3FC has lots of information-- you can choose the plan that seems to fit best with what you like and what you can do.
As for exercise--looks like you get off early enough in the day that you could get some exercise before dinner. Is there a YMCA in your town? Sometimes the Y has child care... Do you have any exercise videos in addition to your walking and exercise bike?
In other words, think of the things you CAN do, not what you think hasn't worked. You CAN try something again. You CAN make some changes.
Glad to see you here! Stick around! Read the stories in Goals and Mini-Goals! Visit all the forums--and check out the diet reviews (from the main page).
Cheers!
Jay