Hi Dinomama!
Congratulations on wanting to take control!
If you're interested in reducing your carbs, check out the Lower Carb section under Diet Central. Many types of plans, and many members who share your carb-concerns.
If you don't want this to end up like your past diets... don't make this like your past diets. In fact, I suggest you forget the word diet all together. You're changing the way that you eat. Simple as that. There is no going back to the way you used to eat. You now eat lower carb. That's just the way it is.
One step at a time. You'll build some great healthy, and permanent, habits. And changes in your weight will come.
Best of success!