@Onedaymore123 Really, don't worry about the food. My DS is pretty fussy. Supposedly he's a vegetarian, but I can count on the fingers of one hand the vegetables he is happy to eat (he will and does eat slightly more when he absolutely has to) - he'd survive on pasta if he was allowed to. He's done 12 NYMT residentials and hasn't come back with malnutrition from any of them. He's even eaten things he wouldn't touch at home! If your DD can eat state school lunches (assuming that's where she is) she will probably think the Tonbridge food is quite decent. Put some cereal bars/dried fruit etc in her suitcase and if she really hasn't managed to eat much at mealtimes at least you know she won't starve.
Regarding your own worries about the residential, in the nicest way, please don't allow your DD to pick up on your anxiety. Every year the kids who have the hardest time dealing with homesickness are the ones whose parents aren't really helping the situation by being in touch a bit too much or getting upset themselves. Of course you'll miss each other, but she'll be doing this great thing, and will have lots of fun, and when you see her on that stage in July it will all be very much worth the separation. What I would do is talk to her about it in advance in a positive but realistic way. What you can tell her for certain is that the pastoral team are really nice (they really, really are) and if she has any worries or problems they are there to help - and they would far rather know if there's a problem, than not. Also tell her that ever other young person there is there because they love performing as much as she does. So she is likely to find common ground with some other kids pretty quickly. They are kept really busy so there isn't too much time for feeling shy or awkward, and they will make friends quickly. Probably a good idea to tell her there will be high points where she's having a great time doing what she loves, and probably a couple of low points when she's shattered and it's bedtime and she might be missing home a bit - but that that feeling is NORMAL and not something to panic about. So often I think the problems come when a child feels homesick, assumes other people aren't and thinks they are somehow not coping, when of course it's natural to miss your family when you don't see them. It's important she understands that there MIGHT be times she feels homesick but the best thing she can do is tell pastoral and get them to organise a distraction. I remember my DS making microwave mug cakes at bedtime with a pastoral person in his first year because his roommate was struggling a bit - they really are that lovely, and the boy cheered up and was able to send his mum a photo of him, his roommates and his mug cake! You can arrange to call each other at a regular time if you want to, or you can play it by ear, but I'd let your DD be the guide for that. If you do get a slightly woebegone call, distract her by asking what she's been doing. Chances are she'll have had a great day and just needed to hear her mum's voice! Don't make it a long and protracted phone call, just distract with chat, tell her you love her and you'll call in the morning, and if you're concerned either tell her to talk to pastoral or drop them an email yourself - but hopefully the latter won't be needed.
I hope that helps, for HER. What YOU can do for YOU is organise lots of lovely things you wouldn't do with her in tow - go out for a nice meal with friends or partner, or go for the kind of lovely country walk that teenagers hate! Separation (both physical and psychological) has to happen for all our kids at some point, but I'm very glad my DS learnt all about it in the safe, caring and above all FUN environment of NYMT!