As was stated earlier; they're doing amazing things with cancer treatments now. I've had several friends that are recovering and in remission from a few of the very bad forms of cancer that are out there right now. Sorry, they're all bad but some are worse than others. 
 One of the things that I've seen in all survivors is a positive attitude. It's got to be hard to maintain but it's believed that the brain can heal the body. I know there's more to it than that but it really does help and I've seen it first hand in many cases. 
 Do everything you can to take those trips you have planned and enjoy the moments. Prayers sent.