Concerned about Home Hemo

Hi, everyone! I've been in hemodialysis for 12 years as staff nurse, charge nurse, facility administrator, and I've also done acutes. The company I work for has a brand new home hemo program. We are using the NxStage cycler and Pureflow dialysate. At first I was excited about this new challenge and my much more flexible job schedule. I am now 6 weeks into things and I see things much differently. Some people say I worry too much about my patients and try too much to be responsible for everything and everybody 24/7. I say I have integrity and I also have a nursing license that I want to keep. Even though I have taught my patients the concepts and the process, I keep thinking about the "what ifs". What if they do get an air embolism? What if they bleed to death? There are SO many things that could go wrong. This is dangerous and risky. I feel like I'm training my patients and their partners to be techs in a few short weeks. Techs on the treatment floor get more training and also have teammates for backup and support. My home pts can call me or NxStage anytime, but we aren't actually there with them to physically help out. My first patient doesn't even have a fistula. In three weeks I taught her to dialyze through a central venous catheter. There is no way in training that we could experience every single possible alarm or experience every possible scenario. I just feel like I will be held liable if anything detrimental occurs. Does anyone else feel this way or am I crazy?