That is a great accomplishment to get down to a healthy weight.
Now - the hard part. - Maintaining it.
Keep in mind that a very high percentage of people that loose weight on crash diets gain it all back and then some more.
I'm hoping you have a plan of healthy eating and exercise.
My own sister lost sixty pounds over a one year period under the supervision of a health professional.
One year later she is heavier than before. So I suspect that she didn't have a plan for afterwards.
Also just a note of another concern - the ingredients in the drink you consumed would be lodged into the tissues of your body. Now that your at a comfortable weight you may want to consider trying a Water Fast to clean up any toxic substances that got left behind in the tissues.
This would help very much in keeping the weight off as one of the main reason for weight gain today comes from toxic substances in the foods and being in the body.
The body will wrap fat cells around toxic particles as a survival mechanism and won't give the fat cells up very easily till the toxic substances are removed.
Exercise is very important for keeping the metabolism at a good level, as fasting always tends to lower it.
Metabolism controls the rate at which the body burns up energy (food.
I hope some of this will be helpful and good luck.