Snacking is an okay thing to do, even when trying to lose weight. The important thing to remember is not to over-snack. This is very easy to do if you eat your food right out of the container that in came in. If you are eating pretzels for example, count out a serving size and put that in a bowl to snack on.
A great motivator on your weight loss journey is to take photos along the way. Once a month, every ten pound,s or at some other regular interval, snap a photo in the same clothing, and marvel at the changes in your body. Humans are visual creatures, so seeing the weight loss in glorious color can be a great motivator.