We can offer a lot here... mostly though, we can offer you the best of our support
You can do this. I've been on WW for just over a year now. I've found it to be a very workable program. There's even a WW area (under "Diet Central") that you should check out!
Maybe "Today" is too much time. Maybe it should just be "This meal is the meal that I will eat healthfully." And say that for each meal. "This moment is the moment." And that way, if a slip-up happens you can start immediately at the next moment, instead of waiting a whole day.
Also, find something to do in the evenings other than eat. Food is not a boredom fighter. Go to bed when they go to bed, or pick up a hobby that you can be really involved in.
You. Can. Do. This. Just keep going
forward.
Best of success!