Sorry for your bad news.  Not having to have chemo is a blessing.  For me radiation was much easier.  Not a walk in the park but definitely easier than chemo.  A lumpectomy is easier to recover from than a mastectomy too.  So some good news.  Good luck with your treatment.  
I found that I didn't really come to terms with my cancer diagnosis until after I had finished treatment and started to recover.  It was all so quick in the beginning and I was in a state of shock, I had never expected to get cancer and felt overwhelmed by it and the extensive treatment I faced.  I didn't feel unwell, it was picked up early.  So it was unreal and at the same time frightening.  But time is a great healer, but it takes time.  For now, take it one day at a time.  We are so lucky to live in Australia with high level health care.   Karen