I am so hungry

I gained a ton of weight during lockdown, went from 130 to 195, I live at home with my parents just now after having to move back in when covid struck, my mom is constantly at me for my weight and I finally agreed to let her do me a meal plan to help me lose weight! We’ve been doing it for 4 weeks and I’ve lost 17lb, I’m down to around 178lb, but I’m only getting 500-700 calories a day and I’m so hungry, I explained that I needed more and I was starving and she said it’s a necessity to help me lose the weight and I’d be grateful when it was done, I agree I look thinner but I’m starving, I feel sick and irritated all of the time and I’m so tired and shaky, I tried to sneak food out and she blew up and told me that I’d ruin my progress and I’d have to move out if I couldn’t control myself. I’ve had 2 cheese sandwiches today, totalling 456 calories and 9 glasses of water, I’m allowed to have a snack before bed but it has to be under 150cal. I’m so so hungry :( any advice how to get through the hunger? It’s keeping me awake at night because my stomach is so sore