Apartment for exchange colombian medical student (22 yo, F) 4 months near Heidelberg clinic

I am Alejandra, a colombian medical student in her last year of study who’ll do an exchange in Heidelberg from 04.03.2025 to 30.06.2025. I’m really excited about my trip and I’m working hard to learn as much german as possible before travelling. I’m searching for an apartment, I’d rather it is personal only for me since my boyfriend, who lives in The Netherlands, would visit me ocassionally but I’m ok with having 1 or maximum 2 roommates if they’re okay with that situation. I’d like the apartment to be as close as possible to the university Clinic, that is in Neuenheimer Feld and it doesn’t actually matter how big it is just to have furniture since I won’t take it all the way from Colombia to Germany. i’m a really calm and kind girl, I’m not interested in parties or making a lot of noise in the apartment, I just want a place lo live that is safe and close to what matters while I’m in this new country. Since I’m a student, I’m looking for a place that is budget-friendly; I’d rather don’t spend more than 1000 but we can talk about it if the place is really nice and meets all the requirements. I NEED IT FROM 01.04.25 to 30.06.25. Thank you very much for your attention and I hope you can help me.