Hi there
I can understand about friends and family - you do indeed feel like you are holding them up while they collapse. My advice would be to simply ask for their support in any way they can. My sisters cleaned my house for me, especially after surgery and also prepared frozen meals to take me through treatment. I had a mastectomy last August and it isn't as bad as you think - the recovery is quite painless and quick. You'll be up and about in no time. Make sure you stay positive - if you give off that positive vibe then friends and family will probably follow suit. Sure, there will be times you have a good cry with either, but that is needed from time to time. Be prepared for some friends to freak out a bit and not stay in touch - some of mine did that and while I'm very disappointed, at the same time I realise that some people just can't handle this sort of event.
I hope this is of help. Keep looking forward and just go one day at a time.
Tink xx