help after sexual violence berlin

hello, To cut a long story short I was raped last night in berlin. I am from the UK and am only here for 2 months visiting.

I have 2 questions:

1.where can I get help? I’ve tried calling some helplines but it hasn’t gone through. I think maybe because I have an English phone number. But I really really need some help as my mental health has got severely bad very quickly because of this 2.I did a rape kit at the hospital last night but don’t feel ready to go to the police yet. I need time to process this and I don’t want to spend the remainder of the holiday in a police station. Ideally I want to be able to report this crime when I get back home and can have the support of my family and close friends. However, my concern is that the police won’t be able to do anything / won’t take it seriously if the crime happened in another country. Can anyone give me some advice surrounding this ?