I had a lot of success combining WW and the gym, to lose around 3 stone, but I recognise it's not for everyone. One of the things that helped me a lot was planning out meals in advance. It's not just about tracking what you eat, it's about looking ahead to the coming days, and making better choices about what you're going to eat, to stay within your points allocation. I used the app to try out meal and food combinations to see how many points it would use in a day, and that gave me good options for what to eat and avoid.
Also portion size is a big thing, weigh everything. A lot of the time I found that I was eating the right things, but in the wrong proportions. Bulking out meals with zero point veg and reducing the size of starch portions like bread and potatoes made a big difference.
I think they've tightened up on carrying points over now, it used to be that you could save a lot of points for the weekend, but that's obviously not healthy and so I think they've reigned that in now. Also alcohol is understandably high in points, making some sensible changes about what I drank and how much had a considerable impact.
Also you will gain points for activity, and if you eat these points, you will still lose weight, but if you don't eat them, in theory you will lose quicker. You can link up things like fitbits to your WW app as well so those points update automatically for you.
Like I said, I had a lot of success with it, and I think they have some really good recipes too, so it's worth a look through that part of the website for inspiration. I will say though, that once I stopped doing it, the weigh did creep back on, and although it's marketed as not being restrictive, I did find it limiting, especially when it came to socialising, so your mileage may vary.
Best of luck though, you've made the decision to do something good for you, so whether it's WW or something else, I wish you all the success :)