Hi SarahLM
I"m sorry to hear you're on this path, and can completely relate to the feelings of the unknown path ahead.
I'm only about 2 weeks ahead of you in the process - SO much happens in these first few weeks - it IS a complete jolt and head spin as you're flung into this new world. I had a wide excision and sentinel node biopsy. Give yourself all the time you can in the week or two following to rest and recover. Make sure you have support to do practical things - especially around the house and driving, I had my friends cook for me and provide beautiful homemade meals for 2 weeks which was a Godsend. I personally have had more discomfort with my arm / arm pit from the sentinel node biopsy than the breast. Really working hard on the exercises and massage to get those new lymphatic pathways going. Wearing soft crop tops, button up shirts and open fronted tops helps as it's taken a while to lift my arm.
Your surgeon will be a wealth of knowledge and the Breast Care Nurses are literal Angels - they'll fill in all the gaps and answer all your additional questions.
I own my own business and had to completely take my hands off it for the lead up and recovery from surgery. As one of my employees said 'if you can't step back from it now to focus on your health - when can you?' So I hope you can have a similar reprieve from your job as well.
Take one step at a time, you've got this!!