A letter to my body
You might want to consider writing a letter to your body. This can be a very powerful thing to do after a breast cancer diagnosis. There are a number of examples on the Breast Cancer Care website. You can write a letter to your body before, during or after breast cancer treatment. (And of course, you could write more than one letter to your body - you might discover you have different feelings at different times.)
I am not my cancer
After I was diagnosed I came across this post by Kayla Redig titled "I am not my nipples". It resonated with me and I immediately sat down to write my own "I am not my cancer" post. Once you've had a breast cancer diagnosis, it can at times feel like cancer has taken over everything - who you are, what you do, what you talk about etc. It's good to remind yourself who you are - because you are not your cancer.
Write about an emotion
For example, describe your:
What kind of experience is breast cancer for you?
People think about breast cancer in very different ways - it is commonly described as a fight, or a rollercoaster, or a journey. Do any of these descriptions fit for you? Why/Why not? Is there a description that you feel is more right for your experience?