I don't know much about Weight Watchers, but I do have a few ideas on walking
I have been hiking & backpacking most of my life, but now I don't do much serious or hard stuff; just low level and rambles
Any sort of exercise is good, and walking is probably the easiest if you haven't done much before
Besides the actual physical exercise it's the fact that you're getting out & about and away from everyday worries & problems - as my doctor put it, years ago, " it's possible to sweat and relax at the same time"
You'll probably start to enjoy wandering around parts of your local town & countryside that you never knew existed, and make new friends
There must be some sort of walking group where you are. The Ramblers do just that; easy low level walks, and they're a friendly bunch. Or try your local sports centre, medical centre, or doctor; they usually do some sort of easy health walk
It's summer now, and at low level you won't need any complicated or expensive gear - decent trainers or cheapish trail shoes, and a waterproof jacket, plus some sort of rucsac for your drink & sandwiches. You'll pick the rest up as you go along
Just one thing - it can be a bit tricky to judge medication/food/exercise, so take something for hypos - sweets, sugary fizzy drink, or whatever. Tell the leader. Remember, a hypo is not like a bit of a twinge in your knee, you can't walk through it, it will only get worse, and if you need to eat, you need to eat pretty damn soon
Go to
www.ramblers.org.uk or Search Google for walking groups, followed by your town
Huh! the link doesn't seem to work properly, but it does if you enter it directly into Google