Looking for a Room for a month in Summer!🫶🏼

I am a Student at Brighton University going into my third year, I am looking to rent a room in between my tenancies (11th Aug-15th Sept). I will be working full time Monday-Friday during the summer months. I don’t drink or smoke, I will also be gone every other weekend at my boyfriends in Wales. If you or anyone you know could help me out it would be greatly appreciated! My budget is £900 for the month.