Inconsiderate Idiotic group mates

     Doing an assignments/project/group work etc have always been a challenge to me especially regarding choosing the right team mates to do it. For 3 years, I've seen many types of idiots to great members. Cooperative and smart one's I like because you don't have to spoon feed them and they can give you the work on time and it's also of good quality. I'm also okay with the moderate one's who might need just a little guidance because they are willing to learn, they are still cooperative. The one's that really piss me off are those overly stubborn stupid one's! The one's that doesn't want to learn, keep saying they don't know how to do it when I specifically spelled out each steps to them. Even worse are the one's that copy and paste EVERYTHING from another person's work and doesn't even cite them. I find this rather infuriating and hilarious at the same time when you asked them what they meant in their work and they gave you the simple answer, I don't know. And usually they'll laugh and tell you that. That's really when you feel like taking a hammer and cave their face in. 
      I face to face at least one of these idiots every semesters and i don't know what's wrong with my luck. With each semester i feel myself ageing prematurely thanks to these idiots. I made the mistake of accepting this one friend of mine who i KNOW doesn't do well in assignments. I regret the very day. Actually I didn't want to but she forced herself into the group and i wasn't in the position to say anything. She doesn't just plagiarize, she's too stubborn to learn and keep telling me she doesn't know how to do. After explaining to her she says she understand and yet when i accepted her work it's full of useless crap. I told her and i told her again that her work is wrong and she doesn't give a shit, just did a little bit of tweaking and she think she's done. OMG!!!! she's so inconsiderate and selfish!!! She left me a mess that I have to clean up for her. Even worse is that she think she's doing it right and she keeps making me mad by looking so free and easy everyday, posting pictures of herself on facebook! GAH!!! she's hopeless. I want to call her every possible insults but I'm holding back.

     I have my own life to live but she's draining it little by little every single day. I get so worked up and tired every night for this week that i barely have time for entertainment. That's me, if the matter is serious I need to fix it before i can do anything else. This is a group evaluation and if she messes it up, she mess with my marks too so i can't, i really can't ignore her.
     Oh please just give me a break!! I've had a rough week having to deal with another few assholes who likes to find fault in anything I do. We're college students for heaven's sake, can't they BE like an adult instead of a spoil whiny kid who doesn't need me to cover their ass every time they don't do something well? Don't just run to me with every small matter that can be easily dealt with themselves. I think i've done enough for them, I'm a great leader but I don't deserve to do everything for them. I feel like tearing my hair out everyday when i see their work. I thought i was the only one who has anger management issues but NO, a few more friends of mine confirmed that they are equally mad about it. So it really isn't my problem, it's that person. I've had enough really~~ Just stop......