23 year old Scottish girl looking for cheap room in Madrid, Spain.

I have got a job with a company based in Madrid but which takes me away to work Monday- Friday so It is only the weekend that I will be around. I am looking for accomomadaion in the centre preferably, even a roomshare with an honest, friendly person. I am looking for an arrangment as cheap as possible, for the first month anyway! I am a very outgoing, tidy, bubbly person who is well travelled. I enjoy socialising wih vino and having a laugh. It would be great to find someone to explore the amazing city of Madrid with on my weekends. The job is teaching English at activity camps and begins on the 27th of March. I am currently in Scotland just now but hoping to get accomadation sorted and come out around the 20th March.