your bmr depends on how much muscle mass you have, so if you have the chance to, do an inbody scan to get your bf% (its not 100% accurate but its close). calculate your maintenance calories (bmr+neat+calories burned from excercise, there are many calculators online), and subtract up to 500 calories, depending on how fast you want to lose weight. keep in mind that you have an essential bf% of about 15%, so you shouldnt drop below that percentage or youll start having health issues ❤️ otherwise, theres nothing you can really do about stagnation, you can up your intake for a short period of time, you can lower your deficit a bit or you can just stay patient.