Hi! Sorry to see you here!
All treatments are specific to the individual. Some sail through, others suffer side effects.
https://www.bcna.org.au/resource-hub/articles/treatment/The link may help to understand
Chemo radio will be arranged through an Oncologist.
As to how many treatments and when and how long, a decision by your medical team. Once you have a plan you will feel in control. As to how you sail through treatments will determine when you can cope with the holiday!
Take care
Best wishes