My family is threatening to give up on me if I don't change my eating habits and weight. Why are they doing this?

Are you serious with this post. You've answered your own question by listing your health troubles and your lack of addressing them through diet change. Your family is afraid for you and dismayed by your inability to confront your demons.

when you're laying on your death bed, then you'll understand why they were so hard on you to change, but now, it's too late

Elizabeth Gilbert posted this on her blog..................The other day, I asked my dear friend Rayya Elias (who wrote the memoir "Harley Loco" about her years of heroin addiction) if — looking back on the pain and suffering of her life — she could imagine any scenario under which she could have gotten clean and sober earlier. I was imagining that maybe if she'd been sent to the right rehab, or had found a more kindly therapist, or had been told just the right words of encouragement by a wise former junkie, or had been rescued by the right family member…maybe she could have spared herself years of addiction and pain. Rayya's answer initially shocked me, and then made perfect sense. She said: "The only way I could've quit drugs sooner would have been if everyone had abandoned me sooner."

Maybe they're afraid of losing you.

I have an eating disorder I’ve had it since I was 12/13. I now understand why my family kept getting onto me for not eating enough and that was because I could have died. Your family love you , if they didn’t they wouldn’t have even bothered saying anything at all or trying to get you to gain healthy eating habits. Start of by understanding what triggers you to eat loads of junk food , then maybe try and replace them for healthier options, you want ice cream ? Try dairy free You want chips ? Roast from parsnips. It’s ok to occasionally binge on junk food , it’s ok to eat it in moderation. There’s websites that tell you how to swap junk food for healthy options that still taste nice. Making your own food is good as you can control what goes into it and how much sugar you want in it.

Its called tough Love.

you know why--im not going to be redundant and explain it to you-Just a child--? Perhaps they want you to live to be a grown up--selfish ol'things-

What do you think the problem is?

Eh

Tell them you’re like Lizzo.