DD is 17. She wants to stay at her cousins also aged 17 for a week, as she hasn't seen her for a year due to covid. She lives about 30 miles away. Her parents are visiting relatives abroad for a month, and her older sister aged 22 is in charge.
My DD is quite strong minded and doesn't follow the crowd. Her cousin drinks alcohol and has boyfriends but my DD doesn't. However they both smoke weed sometimes.
Her cousin was arrested for a fight with another girl earlier this year. My DD says she is a good influence on her cousin and encourages her to walk away from altercations.
We have talked about keeping safe. Her cousin has a curfew of 10pm but I suggested 8pm before it gets dark. I have created a family Uber account, my DD has a bank card, and thought I could ask her to switch on the WhatsApp share location.
At home my DD stays indoors most of the time.
I don't want her to go to her cousins.
I have anxiety disorder and don't know whether my fears are reasonable or due to my anxiety.
I'm worried that if I don't give her any freedom when she is 18 she will go where she wants anyway.
I was going to take her yesterday but turned back as there was a motorway closure and traffic jam. But this was an excuse and I was relieved. My DD was very angry.
She does get angry with me and her older sister aged 21, and bites her own arm when she is very angry. This happens about once a month. It happened yesterday. Before that it happened when her hair was dyed the wrong colour at the hairdresser and she had a crisis when she got home. She doesn't get angry with anyone else. She has had counseling but I intend to refer her to CAMHS.
What should I do? It's not fair for her to miss out on seeing her cousin. But I don't know whether I'm being unreasonable due to my anxiety.