As someone who had ballooned once, I know how important it is to lose weight at any cost especially when you are battling a mindset that now it is impossible to lose the weight.
Most important is, Yusuf has lost weight, and one can imagine the relief he must be having now, also the confidence that weight loss isn't an impossible.
I would say, now that you have tasted success, keep the weight loss steady at 1-2kgs/week and not more, that is what the doctors recommend. The more important, keep a moderate exercise routine, be that just a 45mins cardio, be it walk or light jog, whatever comfortable.
Enjoy feeling light!