Welcome @Machirajuv - first, congrats on your original weight loss and willpower. I imagine that your overall health and fitness are high in spite of your weight being higher than you'd like.
The situation you describe is so frustrating. And, people here frequently report it so you're not alone. Unfortunately, I've yet to see anyone make recommendations on how to break a stall that consistently work (except one, which I'll mention below).
My opinion is that you are at an equilibrium -- you have reached a weight "set-point" and your body is fighting to prevent further weight loss. Your base metabolic rate is likely reduced, and while you are burning calories through exercise, your fitness is working against you by enabling you to burn less calories for a given level of effort. But, what you are doing is not working, so my opinion is you need to change something.
Also, you mentioned you can only get 5 to 6 hours of sleep per night. This can increase stress and higher levels of cortisol, which is associated with weight gain. One idea is to somehow, someway, figure a way to get to bed early enough to get 8 hours sleep.
If you knocked off most of the exercise, you'd have more time for sleep. And you might find that, because you are not having to recover from intense exercise, you are more rested.
Also, you could experiment with changing your diet around. Maybe go low carb. Or plant-based whole foods. Also, you may find Intermittant Fasting helps.
That brings me to what will work 100% of the time - Extended Fasting. Pretty radical, but if you eat nothing at all, you will absolutely lose 1/3 to 1/2 pound of fat per day. Weird thing is that it's easier to fast for 3 days than to eat at a significant calorie deficit for 3 days.
