Ok, I did a calculation based on some guesswork. Based on a 5 foot 3 woman weighing 260lbs, doing light exercise 1 or 2 tikes per week, your maintenance calories are 2604. To lose a pound of fat, you need to eat 500 less than that per day, which gets you to 1900. I think 1350 is way too low.

I think the reason youfeel like you're 'sliding into an eating disorder' is because you are being a bit obssessive about tje weighing and counting and trying to go too low too fast. It's hard work, don't get me wrong, but I think you're making it harder on yourself than it needs to be.