What you did not mention is your weight history, fitness and life style at younger age(5-10, 11-prior working life) right until present, family health background, etc.

Assuming that you are 36 years old and just started dieting and gym and without Metabolic syndrome.
Your daily fasting regime is good...keep it up.
How much do you sweat for 1-1/2 hours gym workout? How much hydration while you exercise and daily water consumption?

The solution for your "resistant" may be sustained cardio dynamic work out like hiking, swimming, trail jogging/running, hill cycling, etc. The key word is Sustained...minimum 1 hour or more. Try these outdoor exercises to add variety and break your gym routine. Of course you can substitute hiking with stair-machine at the gym but hiking a hill/jungle fringe is different because the rhythm and pace are irregular(walking over roots, holding on to tree trunks, ducking low branches, crossing streams). Ensure adequate hydration during your sustained exercise...drink up before you are thirsty. Besides there is fresh air outdoors.

This post has been edited by sijee: Apr 10 2020, 11:37 AM