Welcome to the threads, and well done on your weight loss so far hun xxx
If you stick to the rules regarding re-introducing food once you have got to your goal weight, there is no reason why you shouldn't keep the weight off! Obviously, if you go back to the way you were eating before then it will go back on. Once you get to your goal and feel good about yourself and the way you look, that will be incentive enough to keep it off.
Good luck with your weight loss journey xxx