Female (27) seeking apartment in Stockholm

I'm a master's student at KTH, and simultaneously, I work as a teaching assistant in a programming school which is close to Odenplan. I'm living alone and I don't have any pets, I'm smoke-free. As I'm studying and working at the same time, and I'm working out at least four days in the gym, I need a cozy place to chill after them. Since my contract will be finished at the end of August, I'm searching for accommodation that is close to my university and workplace. I'm very sensitive about tidiness, and I prefer to rent a small, affordable, and well-located place.