Can I live alone in London on £26,500?

[londonlivinggg]

Single female in my 20s. Need to move closer to London, currently earning £26,500. I work near Shepherd's Bush.

Really don't want to relocate to London but my current commute is 2 hours even though I'm only in the home counties.

Is it possible? Where is safe/good? Or would I be better off living outside of London and commuting in?

I would get a house share. I was really worried about living in a house share when I did it and my housemate did indeed turn out to be a psycho, but the independence it gives you is invaluable IME.