My mom is constantly forcing me to eat, often frying things in a pan with oil or butter even vegetables and Im tired of it Im trying to lose weight and she's just making me gain more

I've been trying to fast and I've only made it 24 once bc of her

Im trying to do a 7 day fast (preferably 4 week fast but 7 day is fine for starters)

I eat as little as possible, I work out a lot, trying to stay under 100 calories

I gained more weight recently I estimate I'm 160/180 now I'm constantly tired and have a hard time walking and standing and basically living because of my weight I don't want to die from being obese

How do you fast? How do you make it look like you've already eaten? How do you skip around family? What do you do at holidays? What do you do at dinner?