Breast cancer

Hello, in new to this page.     Hi im 38 years old, i have 2 children. Daughter 14 and my son 8. Recently been diagnosed with stage 2/3 breast cancer, possibly 4 if the test result comes back positive. Its already spread in my lymph nodes. Ive been told by my consultant i will have to have chemo first (lump is 3cm), surgery, radiotherapy and hormone treatment. Plus whatever else he decides. Ive had my bone scan, and ct/pet scans done beginning of last week, and still waiting for results. The waiting is the hardest. Ive still not got my head around it, probably wont till i know when its all happening. Totally petrified of losing my hair. I joke and laugh it off every day, which my family dont understand. My way of coping, i suppose. Not looking forward to the chemo and the side effects. Theres no cancer in my family. So just a case of bad luck-apparently. Had doctors friday, my results were in but my doctor said she couldnt tell me, better to speak to my consultant and he can explain things better! Now my mind is going in overdrive. What do i do? Any advice on anything?