What Should I Do About My Mother?

[Vixxen]

Im in college and I've experienced marijuanna for the first time here. I know right for wrong like everyone else, but I'm just human. Recently, my mother found out by Twitter (she hacked my page using her cell phone) and found out that I did it. I had been talking with my best friend, who also goes to school here, about it. We were just casually talking about it. And I found out this morning she knew because I checked my DM and saw a message from my Twitter to my best friend saying how she basically knew and she was very pissed. So i logged on to Facebook so that I could talk to her about it (my phone is currently off). She was saying how she was going to report me to the college because of it. That was waaaay early this morning. About 6 am to be exact.
It was a while ago after my classes that i came here to the library to study and i checked my Facebook and Twitter to see if she responded to what I said. i basically owned up to it and asked if she could just talk to me instead of yell. She said no. Words were tossed out at me. I didn't try to justify myself to save my ass, but i tried telling her that the situation isn't as bad as she thinks because i've only been using marijuanna since September only during weekends. (not EVERY weekend.)
I recalled that she had told me last year when i first came to college that she did her best in raising me and now that i'm off on my own I'm my own person and I do what i do. What happened to that?
I mean...i understand that she's upset....but that doesn't mean she should be using my Twitter account the way she is. She's been tweeting random things for the past couple of hours. Like, "Oh, I know what those lighters were for now" and "It's on now." As for the Tweeiting, how can I stop her harassing my Twitter page? I asked her nicely to stop but she just..rejected in her own rude way.
Also, she's trying to get me put out of college. She is not paying anything AT ALL for my education, I am. Quite frankly I try to talk with my mom with composure like i do anyone else. But she always finds a way to make things difficult and this situation is just out of control. She's just that type of parent who lays down rules and always expects my brother and i to follow and in the way she wants us to.
i just want her to realize that I'm not a little girl any more, although I am her little girl, and that i make the decisions in my life even though she is technically my legal guardian.

What do i do? This is very urgent. I'm opted to go to Student Counseling on my campus soon if I don't find my resolve.
And also, the use of marijuana isn't affecting (effecting?) my grade what so ever. I have 5 classes, two of which I just naturally dislike...(Math and politics) I'm struggling in math, but it's nothing a little tutoring can't fix, and Politics which I despise because nothing was sticking when it came to taking tests and quizes (anxiety maybe?) so i must drop it quickly and add another class. I'm in love with my other classes. So again...using it really isn't having any change on my education what so ever.

[Caroline]

I don't know much about Twitter but can't you block her or something?
As for the rest, presumably you are 18 and an adult. Since she's not paying anything towards your schooling she has no way to threaten you so I imagine that's why she playing this game.
Sounds like she's kinda nuts, to be honest. Smoking weed now and then won't kill anyone and shoot, if colleges kicked out everyone who tried it, they'd be scrambling for students.
With people like that, I've found it makes a difference if you act the way they do. So, stop being polite, stop being nice, just treat her like you would any other annoying crazy person.

[L]

wait is she tweeting from your account? maybe try changing your password. And the whole trying to pull you out of college thing is fucked up; you are a child and college (kind of) secures your future - does she want you to fail in life? don't worry too much about the situation now, I feel as though she is just bluffing and that this will blow over. If you want it to blow over more quickly, then promise to her that you'll quit ( you don't have to quit, just keep it more on the down-low) but in saying that, you may compromise your whole "I am an adult and I make my own decisions" stand and also you'll be in deep shit if you get caught again.

Any way, good luck