I just had a double mastectomy and looking for good teas to prevent cancer?

I just beat Triple Negative Cancer! woohoo! I am 25 and was diagnosed at 24. Does anyone know any good teas that help prevent cancer? Maybe not prevent but help work to fight cancer? I have to start a whole new diet and need some good tips. I am looking into going to visit with a nutritionist but for now need some good tips. Thanks!