Hi and welcome to 3FC. This is a phenomenal place for support, encouragment and advice. You are in good hands here. Many, MANY people who are in the same boat as you.
My advice to you would be, to do the same exact thing that you did to lose the weight last time! No more slipping back into the old ways. Get back to those WW meetings. You've done it before, you must certainly CAN do it again. Good luck to you.