Wohnung für 5 Nächte gesucht (Silvester) - looking for flat for 5 nights around Sylvester.

Hello everybody! My name is Anja, I’m half German and half Italian, currently living in Verona (northern Italy). I’m coming to Berlin from 28.12 to 2.1 with my boyfriend, who is a 37 years old lawyer. I’ve been living in Berlin for a year in the past and I’m coming for a few days as a “tourist”. We will basically visit Berlin every day and I wish I could find a cozy, nice place in the areas of Kreuzberg or Prenzlauerber (which is where I used to live) where we could have breakfast and relax in the evening once back from our “tours”. I’m a very clean and tidy girl, I’m very respectful of other people’s spaces (I own a nice apartment as well and I’m very sensitive to how people treat others’ places) and I can assure I will leave the apartment as I found it (if you have a wash machine I can clean all the bed sheets before leaving). I can pay maximum 60€ per night (depending on the location-we can talk about that). I consider flats (even very small ones) only, not single rooms. If you have something for me, please write me and send some pics! Thank you everybody!
Anja