Its ok to be scared, I remember being so frightened of chemo, I really did not want to have it and to be honest its not pleasant but we survive it and come out the better for having it.
My advice, is to drink until you think your drowning, when you can't drink anymore have jelly, water icypoles anything like that it helps.
Keep nausea and diharroea medication close by, rest as much as you can and enjoy the good days. Paint your nails black and keep out of too much sun.
If you get bone pain take the medication don't worry about it just do what you need to get though and you will come out fine on the other side of it all.
Good luck
Donna