Firstly welcome.
I didn't have a lumpectomy but from what I understand most people discharged the next day. You may have a drain depending on nodes taken for sentinal node biopsy. Sometimes they need to take more if they look suspicious.
I believe most people are driving within 3 weeks. You'll have to ask the radiologist but I believe radiotherapy is 3 to 6 weeks after lumpectomy...unless you need chemo...and they won't know that until your pathology is back after surgery. So normally 10 days.
Bras....you can buy a post op front clip bra from Target for around $20. Or you could wear an aah bra...just step into it not over your head as your arm movement is limited after the sentinal node biopsy. Myer sells berlei post op bras in the store.
Ask tbe hospital where referred if they have a breast care nurse attached to the unit and get in touch for support.
Also have your ordered your my care kit yet?
https://www.bcna.org.au/resources/my-care-kit/Also please order you My journey kit. It comes very quickly.
https://www.bcna.org.au/understanding-breast-cancer/my-journey-kit/A lot of the info included is available to read online also.
Kath x