I should be happy, but tonight I feel broken. Has the reality really only just kicked in? Today, I decorated the tree. As a Teaching Assistant, I should've been celebrating the last day of term, the excitement of the children, the relief of the holidays. But I've not been in. Today, the skin under my breast has succumbed to the effects of my radiotherapy, which finished on 15th. It's sore. It's weeping, as I have been…