Passing Surrey Quay to New Cross

I am taking the East London line to New Cross. This is a route I do often. I know that I am very familiar with all the scenes and sounds along the route. However, I have never felt easy with this route. I have never felt a sense of belonging here. I cannot link myself to this environment despite that I know very well where trees, bridges, buildings, signs and other things are along the route. I see myself always being a foreigner in London.