Just wait it out. I know that’s hard to hear but coming from somebody who has gone through what your daughter is going through and witnessed it firsthand with countless others, it gets better.
No new student is going to be ckoletelt comfortable and content with their new environment after a mere 5 days. Most people will begin to adjust to the new schedules, routines, etc. after about a month or two. As I can only give you advice from what I have experienced and seen others go through, I can’t imagine how hard it must be for a mother. Just remember, almost every single student at a boarding school has probably felt a few of the same emotions your daughter is working through and feeing right now. I have seen many students at school who stay for 2 weeks, say that they aren’t happy, and then leave. I would argue that there has got to be an adjustment period that is longer than 2 weeks!
It is totally understandable that your kid is feeling the way that they are right now, but just remember that it will pass. Do not be hard on yourself, or your child. I personally know that for me and many other kids who have gone through homesickness and a rough adjustment period, talking on the phone every day makes things so so so much harder. Most kids will periodically text their parents a few times a week and then have a set 1 or 2 days when they will call to just talk and check in.
Your daughter is going to start a regular routine, get into her classes, have fun in sports and activities, and make lots of amazing new friends. Give her the time and space to do so.
Overall, don’t be too hard on yourself or your daughter. Give her some space and time to adjust. These feelings will pass. Give it another month or 2 at school to see how she settles into her new life and routine and then you can re- evaluate but don’t consider pulling her out before she even started. Take a deep breath- It is going to be ok. If you have any questions feels free to pm me and please give us updates on the situation! Best of luck to you and your family:)