6 month stall / plateau

So I was sleeved on January 6th, I'm approaching my 6 month surgeriversary in three days. My starting weight the day of surgery was 303 pounds, so i've lost about 94 pounds. Since about 6/25 I've been stalled, fluctuating between 208 & 210. I've heard of a dreaded 6 month stall and I'm not quite sure what I can do to kick my weight loss back into high gear. On any given day I can eat between 500-1000 calories. It honestly depends on how much restriction I have on the particular day. Does anyone have any suggestions? I am also fairly active and workout for 45 minutes to 1.5 hours a few times per week if my schedule permits. I also stick to eating a keto-based diet and try tostay away from carbs as much as possible and I try to get at minimum 60grams of protein in per day.