Dear Michelina
Sometimes what helps best in a stressful time is to talk to someone you don't know at all. Cancer can bring out a lot of deep seated issues too. When we feel confused, frightened (and most of us do at least some of the time) or that no-one understands, letting it all out to someone trained in listening, and not pussy footing around trying to help but not knowing how to, is a good move. Your oncology nurse will probably be able to suggest a counsellor. A few sessions can sometimes help with the fog.
Good luck.