Good morning and welcome to the site. Give yourself a break it is hard hearing you have cancer. I was diagnosed 2 years ago after having my routine 2 yearly mammogram I had 2 surgeries and then they decided I needed a mastectomy and chemo. I'm now clear but I still have days when I can't believe I went through it all.
Chemo is not pleasant but everyone is so different. I started to lose my hair before second round so had it all cut off after second round. It was difficult but I was surprised how quickly I got used to no hair For me I had other issues going on. Try and get yourself into a look good feel good session (your breast care nurse should be able to help).
Take time to breathe and one day at a time. This site is good to stay in contact with others going through their trip. I found I didn't feel so alone here, sending you a hug xx I'm off to work