I am a firm believer in that you can train your mind to think certain ways, many successful people in all aspects of life have known this and train their minds. I think it's understandable you react to your surroundings and it seems cancer is your circle, your partners mother and is obviously having a major influence on how you think.
That being said I think you have to retrain your mind, as it's unlikely to set free of worry on it's own. I like to listen to motivational, uplifting things regularly if not daily. Hey it's worth giving it a try, there are many around. I found one for you I pray it helps and I hope everything works out for the best.
You say you have a vacation soon, why not bring an Audio player and some meditation like tapes and help train that mind of yours. Is the saying not true that if you tell someone something enough times they start to believe it? You are healthy, your body is healthy!
https://www.youtube.com/watch?v=w4Mdjubef0s
Post Edited (Virdent) : 4/21/2019 9:17:14 PM (GMT-6)