SARAH ~ you are already off to a great start; six pounds is a lot for one week. Yes, that will slow a bit; a 1-2 lb loss per week is recommended by most experts.
MOTIVATION ~ well, losing the weight in itself is a good one; as is getting and feeling healthier; think of all the nice, cute clothes you can buy; losing weight brings a new kind of confidence with it; a kind of peace, I think (for me, anyways). I just have much more energy than I had before; I can do more now, and that encourages me to try even harder.
And Yes, you will like it here; we have a Weight Watchers group here, and the people are friendly and supportive too. Hope to see you around ...
ROSEBUD