I am so very sorry to hear this. We can only hope that you discover this is early stages vs. late. If that is the case, I know you will put up a fight. Instead of focusing on the negative, I do hope you can find it in yourself to be ready to seek aggressive treatment and not let it get you down.
I have heard that you should stop ALL sugar intake. Not a single grain. I am sure there are other things you should avoid, but that is all I know.
If I had any advice to bestow upon you, it would be to seek counsel. Either a licensed counselor, a psychologist or even a pastor of a church. (I am not sure about a priest). Consider asking medical staff for help in finding a counselor. You need this like you need water. If you feel scared and alone, seeking counsel should be your first step. Also, do not ever think you'll find the right counselor on your first try. So many counselors/psychologists etc.. suck balls. You really have to wade in murky waters sometimes to find a good one, so do not give up after the first one doesn't work out. Searching is part of it.
You also need to find things that make you happy and do them. Do not let this get you down. You're not just fighting invading cells, you're fighting your emotions too.
So, do this......if you want to listen to me....
1. Ask medical staff about counsel.
2. Seek one or two out. Find a good fit.
3. Do not give up in this effort.
4. Whatever it is that makes you happy, do it.
I do hope for the best in your coming tests. We all here want you to recover and beat this.
Take care and when you can, please keep us updated. Good luck to you.