UCD student looking for accommodation in Dublin

Hello! I'm Rose, and I'll be headed to Dublin this August to start my MA in International Development at University College Dublin (UCD). I'm looking for accommodation, either near UCD or near public transportation to UCD, with a budget of 500 euros, for either one semester or two.

I'm very chill and I don't smoke or party much, and will in all likelihood spend most of my time studying. I have loads of siblings, so I know how to share space and clean up after myself, and I'd prefer a single room in shared accommodation, but I'm open to having a roommate if it's a great deal. I'll be coming in mid-August, so I can start renting then too, though the program itself starts in the beginning of September. If you know of any accommodation or are looking for flatmates, let me know!