Dear Suzie82,
Everyone's advice has been excellent.
My treatment sounds quite similar, although I started with a Mastectomy with axillary clearance.
Re the wig. By all means ask re any available funding. The Breast Care nurse will probably be familiar with what is available. But most Chemo units offer the Cold Cap, you may ask about this prior to starting Chemo.
There are many ladies here, who have had success with the Cold Cap. They have kept hair and not required a wig. I had a little thinning that no one noticed. It's worth a try. You would know if it is not working after 2-3 Chemo sessions, as this is when hair usually falls out.
Everyone is very different with their response to all of the treatments you mentioned.
Some ladies do have a hard time. But there are some who have side effects that they do get, but find them manageable.
I was one of the lucky ones. No nausea, some fatigue but not excessive, and no skin reaction to radiotherapy.
Try to stay optimistic. Deal with each problem as they happen. Be aware of possible side effects, so that you can report them, as there may be advice and treatment available.
Write down questions as you think of them, ask your Oncologist and/or BreastCare Nurse these questions.
Thinking of you. All the best as your treatment progresses.