Travelling with just an iPad Pro and phone as a writer

I am about to leave the hot and rainy Bangkok and go to the apparently warm and not too rainy UK. After that will be a trip to Germany and the towns of Kassel and Muenster for Documenta and a ton of art. I am a bit worried as I have made the momentous decision to travel with just my iPad Pro (for writing and entertainment) and a Samsung 8+ (for photos and the internet) and no laptop.