How can I look after aged care people without getting hurt?

By getting hurt I'm guessing you mean older people dying. It's hard to look after aged people without growing a connection. I recommend not growing very strong connections. I'm not saying you can't be friends with them but nothing like mother child relationships. The first Death will be very hard on you and the next couple to,es will be hard too but soon you will develop to not take it too hard because it's the course of life. Hope this helps!