It's understandable to feel angry at other people at times. I'm sorry that you feel more hate and anger towards people who have tried to help, because that hate and anger can sure convince people to stop even trying. I sometimes get really angry and hate the fact that I have been unable to accept the help that others have offered me, or that it just didn't do anything... but I never feel that hate or anger towards the person, because no one has to go out of their way to try and do anything for me... and even the people who are paid to take care of others, well, they're human too.

As for what we are? We're biological organisms; mammals. That's really about it! We're mostly empty space, bacteria, and water but somehow that amalgamates into "human". Weird right?!