We could be more helpful, if you would let us know the plan you are following.
Give us a journal of your food for the last 6 days.
As someone very wise above said, this is a marathon, not a sprint.
Figuring out what exactly works for each of us requires, patience, and tracking of our food, moods, stress, life, etc., and weigh ins, and evaluating, what is and is not working.
This is a great trial and error process, and while not each and everything will, or will not work for each of us, with patience, we can find what works for the individual.
One phrase I hold dear to. There is no failure, only feed back!
Track, journal, blog whatever, if A isn't working, move on to B or C or whatever works. The key is keeping track in some form another, and learning from the information!