Try switching your exercise routine. Hitting a plateau can be from doing the same type or exercise. As your muscles get used to doing the same exercise, you require less energy to do them.
Example: If your doing mostly isotonic, do more isometric. If your doing mostly cardiovascular (aerobic) do more strengthing (resistance). Also do flexibility (range of motion/stretching) to prevent injury. This is one of the basis's of the P90X system. That system switches out exercises so your body does not hit a "plateau" Switch to yoga, try Tai Chi, walk in a different area, run/jog in different area's, boxing, join a exercise routine for a month..just keep switching it up and rotate it. Give your body just enough time to get used to it...then switch!
If the body knows it will receive "so and so" amount of fuel at "such and such" time it will continue to burn fuel based upon that. But if you miss a few meals it panics and starts to store it. Keep your meals. Also spreading the meals out over a day allows your body to to keep from going into "starvation mode" because it knows it will receive more fuel/energy in a timely manner. If your going to reduce your calorie (fuel) intake, do so in small amounts...cutting out 4 meals is just going to panic your body.
Imagine a see-saw balance with work out on one side and food (energy/fuel) on the other side. Too much of either on one side will knock things out of balance. What you want to do is tip the work out side a little more than the food side. Eat like 2500 calories and burn 2750 a day (just an example, not actual). Since you are trying for "weight loss" and not "increase muscle mass" choose your works outs based upon that. Balance is sometimes hard to get but once you got it, it becomes easy as breathing and you can do it in your sleep.
Lastly...REMEMBER! "Diet" is not something you "go on" like a bicycle and can "get off" when your done. "Diet" is something you change for a long term goal and continue for long after...like buying a new house. You don't buy a new house for 3 months and then switch to another, do you?
I hope this helps, remember, have fun cause if it's not fun or educational...your not going to do it for very long.