hi

This is a very vague question. It depends on your starting weight, your BMI, your goal, your surgeon's goal, how committed you are to post-op instructions. It would probably be best if you started off with some research about the sleeve and then talked to your surgeon.

hi, i already made the sleeve surgery before 7 weeks i loose till today 15 KG

Like Izuri stated, it's different from person to person, the only thing that is consistently predictable is that the higher your BMI is the faster your initial weight loss will be. Beyond that, there are too many variables, like, men typically lose faster than women, how much excercise & how intense your workout is, genetics, what you ingest, this is just a few.

The sleeve is a tool for you to use. It can only be effective if you make it that way.