Why are my parents doing this?

... forcing me to stay psychiatric ward, even though I'm eigtheen. I can decide on my own, yet they force me by threating me with getting kicked out from home or calling an ambulance so I can get admitted to the closed ED department.

I've tried to tell them that I've been getting more and more sick by staying in the system, but they don't believe me. I can back this up, as I have been losing more and more weight, depression getting worse and more.

The mealplans are making me have certain food patterns, as in me not being able to eat out, just because of a mealplan. I tried to talk with my psyc. and doctors, but they told me off.

My parents are afraid that I'll die in the end, which is overdramatic.
I'm not deathly thin. I'd say that I'm very average.
Why are my parents doing this?
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