Contact your breast care nurse and make enquiries about help at home following surgery since you live alone. Someone might be able to do some cleaning. ..hanging out washing etc for up to 6 weeks at least (for instance after a shoulder reconstruction) I know if over 65 it is done through my aged care. Certainly the hospital social worker would know what is available so might be good to contact now. The restrictions are for a number of weeks and I gather you are having bilateral so it might be quite tricky.
This link is also interesting and might be worth calling.
http://www.dialanangel.com/perth