If you really want to TRY it, why not have a back up person. 10 years ago I had a very small preemie. Ian is now playing little league football and is a strapping 10 year old doll. But when we brought him home, I had to go straight back to work and leave him with my very ill equipped husband. Lovely man but one who had never, ever dealt with children let alone a preemie. We had a visiting nurse once a week (which you won't have) but I also enlisted the help of friends, neighbors, my mother, brothers-in-law etc. Everyone had a day that they were going to "pop-by" or be on call for help. It gave me the best secure feeling thinking that someone was on back up in case of emergency.

I don't know if this helps but maybe once you have tried it and feel confident that you can do it without help, then you won't need people on stand-by.