I agree with Janet. Educate yourself first because breast cancer is not one disease. Know what all those tumor markers mean for you and your treatment. I used to see ER/PR+ HER2- or TNBC in commercials on TV and had no earthly idea what any of that meant. If your doctor's office doesn't give you written literature to take home, then ask tons of questions. Hopefully, you will have access to a nurse navigator who will explain things. You will have some decisions to make and they need to be made using knowledge not emotion. Don't let yourself be rushed into anything if you are uncomfortable with what you are hearing. Knowledge is power. If you go online, make sure that you are using a reputable source like the Mayo Clinic or a well-known hospital website or the American Cancer Society. There are no "natural" cures for BC. Sorry. Yes, chemo and other drugs are "toxic" but they are designed to kill something that wants to kill you. Everyone's diagnosis is different. Much depends upon your tumor markers, grade, stage, and results of pathology following your surgery. Whether you have clear margins and if there is any lymph node involvement. Everyone's treatment is different and everyone's response to chemo, radiation, and various drugs is different. Do what is right for you but make sure that your decisions are based upon knowledge. Wishing you the best.

I agree with both Carole and Barbara. They most important thing is to EDUCATE. Not only yourself but your family members as well. Family and friends need to educate themselves so that they can support you and help you to make the best decisions that are right for you. If they will educate themselves, they'll be able to help you remember things that you want to talk about with your health care team. Without the knowledge of what is going on they will find it difficult to understand everything we have to go through.
EDUCATE YOURSELF
EDUCATE FAMILY AND FRIENDS
EDUCATE FOR SUPPORT.

Ditto everything Carole said.
The most important thing in my opinion is to get educated and never ever just accept what your doctor suggests as the only way to go. Sometimes they overtreat and the course they want a woman to take may not be necessary. DO THE RESEARCH, WE HAVE TO. This body is our body, what we have done to it, what we put into it is on us, not a doctors. Going against a doctors wishes is not going against God. A doctor is not God.

I agree with Carole115. Definitely take someone with you. My husband comes in with me it means I don't have to repeat anything to him but also it's sometimes impossible to take everything in or to remember it afterwards.
I also would [and have] ask for a referral to your palliative care/pain clinic. In uk we have charities who support those with cancer and cancer related issues and provide advice or even sessions of massage etc. Don't ever be afraid to ask any question no matter how stupid or unrelated you think it is.. good luck, sending hugs ❤