First, is your body changing, pants getting looser, measurements getting smaller?
If so, then what you're doing is working. If not, it's not working and you need to change what you're doing. I would suggest some experimentation. Either raise or lower your calories (I know some people will disagree with raising them but it worked for me) and/or change up your exercise (type, duration, or intensity) for at least two weeks to be sure whether it's working or not.
BTW my magic hump number is 183, I get stuck there every singe time.
Oh and it doesn't sound like you're doing anything wrong, different things work for different people, keep trying until you find what works for you but keep in mind that it may stop working and you may have to experiment some more in the future.