How to get rid of a friend nicely?

[Bella]

I have this friend, let's just say that her name is Lucy.
Lucy only thinks of herself. For example, if you're in the car and her window is down and you have no jacket (because she wouldn't lend you one in the first place) she wont put the window up.
If you need to borrow a book or a pencil she'll refuse even though she's not using them.
If you need to borrow makeup she won't let you.
Yesterday, I went to a dance and she took pictures of me on her phone. Today I asked for the pictures (for facebook) and she didn't reply, even though she did see the message (my phone can show that). I don't know why. She seems to be keeping a billion secrets from me.
She said that she deleted them to make storage on her phone but then when I called her she said that she had more and was sending them as we spoke.
This was 3 hours ago. I called her a few times and she picked up and then hung up really quickly, or denied the call.
A lot more things have happened where I tried to block her out.
I was at a sleepover at her house and she needs a lamp in her room because she's afraid of the dark but the lamp was in her mother's room so she kept the full light on and expected me to go to sleep.

I have really bad sleeping problems (she knows this) but she refused to turn off the light and by 5 AM I had to ring my dad to drive like 5 miles to pick me up because we live far away, and she didn't care.
We had to be at a party at 6:30 and at 5:00 she announced that she needed to go to the mall to get a christmas present for another girl going to the party.
She could've gotten it the day before or after but she 'needed' to go then and there.
Being 5 days until Christmas and a Friday afternoon the mall was jam packed and it took us an hour to get there.
Of course the present was sold out, like I told her.
In school she denied that we were friends last year, even though we WERE best friends.
She's really mean to her mother and she screamed at her last night because her mother didn't want to stop the car so she could get a fanta. Her mother cries a lot because of her and I feel really bad.
She's not even bitchy she's just crazy and weird, and she only thinks of herself.

I don't want to be friends with Lucy anymore but it's way too hard to block her out.
She's in my form in school and takes many classes with me. She's the type of person to keep asking me and asking me what's wrong and why am I ignoring her until I tell her, and if I explained to her she'd just start yelling at me and making up crazy excuses and turn it around on me.

She's like glue that I can't get rid of and she's the type to laugh and tell everyone that I'm mad at her as if it's funny.
I do have other friends that support me but most of them are friends with her and don't see her ugly side.

I don't know what to do because I don't want to actually confront her because that might upset her and she could go to the guidance counseller. I don't want to cause a scene, just erase her out of my life.

Please give me advice!!!!

[Real7777]

Why don't you make other friend closer and spend less time with this one as possible.

[Zahar A]

You need to tell her that if she doesn't quit it, you can't be her friend anymore. If she continues, then ignore her. Stop hanging out with her.

[Snoopy]

i have a friend like this and sometimes i just want to rip her head off.
go to the councillor before and tell them ur story so that if she goes to them they got ur story first! this is what i would say:
look Lucy we need to talk and i would really appreciate it if you said your opinion when i have finished so that there is no misunderstanding... lately i have been going through a lot of stress and i just can't do this any more, i try to be with you and have fun but i just feel like we are just to different. like the other day when you kept the window down and i was cold i just wish you would consider my feelings sometimes. now don't get me wrong I'm not trying to change you or anything i just think we need a break from each other.

now i can't say she won't interrupt so if she starts to attack you and you just can't seem to get it out in a nice way i would tell her: look you need to grow up and finally get this into your thick head the world doesn't revolve around you!!!i can't put up with this anymore!!!