losing only what "you don't need".. some questions

I did the Master-Cleanse for 22 days and lost a good amount of weight. i know some people don't lose as much and its funny I felt like I was carrying an extra layer and was very depressed etc... my friend kept telling me during the Master-Cleanse " don't be afraid to let go of what you don't need" so i am assuming that maybe this weight will stay off since its stuff my body wanted to get rid of, why I lost so much etc ? I feel like I am back to myself again after a long time... Does this make any sense? im just wondfering if it really is like that, your body sheds what it needs to , a lot or a little depending to what you are holding onto and how toxic etc?

Im still getting used to myself....