annoying people

have you every been annoyed by people who think they know you and they actually know absolutely nothing? and then when you tell them they are wrong they try to argue? I get really tired of it. Somedays i just wanna scream at them. Instead i am trying to keep a level head and not let them pull me into senseless arguments. But it is not the easiest thing to do. And there are times that people bring to my attention that i am being kinda stupid about something, and i try to back off. And then there are people who know things about you you type out on a thread but insist that they have never read or responded to any other thread you typed. *shakes head* they kinda already outed them selves. but whatever i am trying hard to do this. it will get bette as soon as i bring in some money and get my basic meds again.That will make it sooooo much easier to deal with these people