"Losing weight is easy," said no one ever. Though, in most cases, it's not impossible. Just make sure you're not doing these things, which may slow down progress or give you the impression that, despite your efforts and all that salad, you're getting nowhere.
Assuming you're getting nowhere because the number on the scale went up or hasn't budged is one misconception about weight loss. Your weight is influenced by a number of things, including the amount of fluids you're retaining, added muscle and how recently you've eaten. Your body weight is just one indication, so be sure take other body measurements once in a while if you need the data to reassure yourself of success.