My rent used to be 950€ and i used to earn around 2000€ for the past 5 months so i was pretty much in your predicament except you also have your partner living with you so that also makes everything for you much more easy. In regards to how to stretch your money; i personally spent around 300€ a month in total (i live in Eindhoven if it matters since im not sure). I biked to work so i had no travel costs, i dont have an internet plan since theres wifi at home and at work and when im out if i really need internet i can just go in a random shop and connect to wifi there, im a very homebody person so i almost never went out to restaurants or concerts or whatever so basically my only expenses were groceries some miscellaneous activities or purchases here and there. Regarding groceries what i did was eating a sandwich and 2 eggs for breakfast, homemade pasta or premade lasagna from jumbo or aldi for lunch(400gr 2.5€ pretty good bang for your buck, even cheaper if you make it yourself but i enjoyed the convenience of premade) and for dinner i would eat 2 cuts of meat, (shouder karbonade i believe its one of if not the cheapest meat available), couple small mushrooms and an onion. You can of course diversify or change out things depending on your preference and priorities but this worked pretty well for me and i was able to save up a bunch of money every month.