Quit hoping and you'll never be disappointed. You'll actually be very happy whenever something works as it's supposed to, and you'll be able to admire the beauty of something working fluidly. Stop expecting people to have any moral standards similar to your own, and realize your own moral code is unique. You can attempt to influence others' moral code, but don't expect nor hope to. You'll be happy whenever someone says something you agree with instead of angry whenever someone says something you disagree with. You'll find it easier to be civil around people who would normally raise your blood pressure.
And if none of what I just said is true, then I imagine all feelings really are synthetic, and you should just delude yourself into being happy.
Don't expect your parents to help you. Don't expect the government to help you. Don't expect any store employees to know what they're doing nor want to help you. Don't expect people to be polite. Don't expect people to have the time nor will to listen to anything you have to say. Don't expect people to discuss anything civilly.
Don't hope for anything mentioned, either, and whatever you do, don't think of anyone as being inhuman for reaching a new low in "being human". Nothing is uncalled for just because you didn't imagine they'd react as they did.
