Keeping a blog is an excellent idea: For yourself, so you can get what your feeling out somehow. And for your family, so they know what you're facing without having to decide whether or not to ask. After all, a lot of people sort of disappear, some because they're spooked by the very idea of cancer, but others because they don't know what to do or say. But the main thing is that you're expressing what you're feeling. Like Kat said, scream. Whether it's out loud or on paper (or in this case a computer screen). I really think that's healthier than trying to be stoic and composed 100% of the time.
TC1: 1996, right orchiectomy, seminoma stage I 3.5 cm mass, radiation therapy (peri-aortic & pelvic 27.3 Gy)
TC2: 2008, left orchiectomy, seminoma stage IA 5 cm mass, left & right prostheses, AndroGel TRT, surveillance at MSKCC