I think at the start of the journey it's normal to feel completely overwhelmed and there's lots of things I wish I'd known at the start but you are thrown in the deep end with anorexia and expected not only to swim but to keep your child afloat as well!!
What I would say is don't think too far into the future, it's easy to catastrophise and that leads to more anxiety, just take one day at a time. Tell yourself you can do this, believe that you can get your child to eat, be stubborn and determined!! If you don't believe they'll eat then that's no chance your child will believe they can.
Take one meal and one snack at a time. Use every arsenal available to you to get that meal and that snack done. Use leverage, bribery, distraction, talking nonsense, putting the telly on, hand feeding them - whatever works for you. The important thing is the food goes in and stays in.
Ultimately if the food doesn't go in don't be afraid to plate the food up, bundle them into the car and head to a&e. The hope would still be they'd eat on the way there but if not at least they'll get a medical once over and it will highlight to services that you're struggling.
Make the rest of the time as comfy as possible, dd was always cold at the beginning so I got her a heated blanket, thick socks, the heating was on, thermal vests etc.
I encouraged crafts I knew she liked, we played board games, occasionally she'd let me paint her nails or do a face pack, we watched a lot telly.
Definitely separate the ED from your child, if your child is screaming they hate you and wish you were dead then see this as a good thing. The ED is threatened and kicking off - good it should feel threatened!!!
Know that deep down your child is absolutely terrified and needs you more than ever before. Wait until they have calmed down and tell them you're sorry this is so hard and that you love them very much (Anorexia hates that you love them no matter what bile it spews at you!!)
I feel like a bit of an ED veteran these days as it's soon going to be 3 years since dd was diagnosed!! We're still not ED free sadly but dd is a good weight, eats a decent amount, goes to college, has friends and a pt job so life is okay and I have hope that one day she will naturally just move on from it.