Maybe I aim too high sometimes...

So I was talking to my friend about how some people in my life are just making bad choices and that I am disappointed in them. I was telling her about how it is breaking my heart to see them do the things that are doing and that I can't look at them the same anymore. She told me that I expect too much from people and that I set people up to fail. She told me that I need to lower my expectations. She got so angry with me that she hung up on me... I don't feel like I have too have of expectations of people... but she had got me thinking. I don't like second guessing myself at all.