Hi @November
There is a wealth of information on this website as well as this forum.
Try and stay away from “ Dr Google” it can be scary ( not to mention unreliable).
Two resources I found useful were the book by Dr Liz O”Riordan , a breast cancer surgeon in the UK who herself got breast cancer - she also had a blog, and Dr Charlotte Tottmans podcasts “ What you don’t know until you do” which is on here and referred to above - she is a psychologist who got breast cancer.
Put up any questions you have and we will trey and answer them.
Take care🌺