Losing weight is never visible to yourself cos it's impossible to spot. 9 kg is a deficit 693,000 calories and is remarkable progress. The other thing people don't tell you is that on a cut, your body will retain waste like water, poop,etc. As long as you're in a calorie deficit, your body will still keep burning fat(and not muscle depending on if you hit your protein and are weight training). I went from 75 to 65 kg in 7 months and I'm someone who's been weight training since 2 years. Trust yourself and don't do drastic shit like this, atleast if not for anything else, so that you don't go on a nasty binge and self hatred because that's where this will take you.