I think at 18 months, most of us are beyond the honeymoon stage. I have been bouncing around the same few pounds since January. Very frustrating, but I've lost 8" and a dress size in that same time. So be sure to measure...you may be losing inches instead. The scales aren't always the best measurement of success for us. I know in my case, I've been exercising more so I've been replacing the fat with denser muscles.
I was an avid Fitday fan also but have recently discovered SparkPeople.com. It helps to hold me accountable for food, exercise, and water intake. Also, break those measuring cups back out. I do good at judging meats (3 oz is about the size of a deck of cards), but most other stuff, I measure. Eat your protein first...fats and carbs last. When you are full, STOP EATING. Even if it tastes so good, stop eating. No one can take the fork away from you. You have to do that for yourself.
Munchies...only keep good munchies in the house. Veggies are the best munchie. Fruits are good too. Fiber One is an excellent source of fiber, but is also a good munchie...and also good in place of croutons on a salad. I also keep BariatricEating.com's pork rinds in the house. If you eat 1 oz of another protein (to fini****'s molecular make-up..to make the protein active), then 1 serving has 23 g of protein...plus the protein from your 1 oz (for me, it's cheese cubes). I also get in 80-100 g of protein a day. Don't forget your water. It's recommended at least 64 oz. My norm is close to double that.
Good luck...and may we all reach our goals!