Only two weeks into the journey

Hi cat im only a newbie too. Diagnosed 3 weeks ago after accidently finding a mass in the right breast near breastbone. I had ultrasound and core biopsy same day. Was grade 3 invasive ductal carcinoma. The wait is scary and the moods may swing like crazy. Mine did and at only 3 weeks still are. I had mastectomy yesterday and was to have just the sentinel node removed for biopsy but once on the table they discovered a number of enlarged auxillary nodes.  So ended up taking more than planned. I too now am so in limbo because an guessing now probably lymph node positive which was hoping not. I do know as hormone pos, like most are, i will need anti hormone therapy for several years, but like you i still feel like im floundering.   
I guess we both just need to take on each new bit of info as ot arises. I know its hard because i have always been a forward planner and here is something that i now cant.  All the best bev