Youve got a great attitude about it all, I think. At some point, ya just gotta accept that its a machine. Its gonna live or its not & we, as owners & caretakers, can only do so much to keep them alive w/o just being anal about it. Do what is sposed to get done, pay attention to what its tellin ya & somehow, keep away from just being paranoid, like a new mom, jumping at every move her baby makes.