Its easy, you just need to avoid getting the cravings.
You must eat several times a day and not only a salad or a fruit. I would advise you to eat a big breakfast, then a helathy and filling snack, lunch, another good snack, dinner and - if necessary another snack (or before dinner another snack).
Many people try dieting by eating less.. sure but i - as a vegan - advice you to eat more and more frequently. Of course not these unhelathy nibbles, but healthy stuff, lots of vegetables and fruit. But you also need your protein (lentils and beans are a healthy, low calory way). It will not work to cut everything... like the no fat article... well as a vegan i need looooads of fat.. and i eat masses of food...
And i need much time to prepare them. I dont even have time to think about nibbles. And also, dont go shopping when you are hungry :)
If you do that, it will be alot easier my friend!