Female Professional Seeking Flat in London

hi!
I am a 23 year old female, looking for a flat in london as i am starting a new job in medical communications. I would like a double room.

I will be working in Marylebone so ideally want to live in areas commutable to there. I also want the area to have nice cafes, pubs etc. Some options are clapham, brixton, balham, highbury and islington, angel, fulham, battersea etc.

I would like to live with younger females ideally, but it is not essential criteria. I am easy-going and friendly, happy to have a good chat but also happy spending time on my own and socialising outside of the flat. I enjoy cooking and am clean and relatively organised!