You don't need to write about your life. Write about what makes you sing or what makes you angry (ahem Umair). Write to please your self and for the enjoyment of writing. You don't have to write as an article on Medium, write it as if you were speaking out loud. I often put comments on Medium articles but I don't do it as a means of producing clever or witty writing. I do it as if I am answering the author directly.

I live alone so I guess this is my way of communicating and staying sane. People don't write letters any more, so Medium is like being able to write to all and sundry to express your thoughts and staying in touch with the world.

P.S. You don't even need to publish any of it. Just enjoy the process of writing. Get it off your chest, as they say here in England.