is our friendship worth it anymore??

It's definately worth talking about. And 당신 need to be straight with her too, blunt instead of beating around the bush.
If she's a true friend, she will understand, hear 당신 out and try to change for you.
Invite her round to your house for a drink and a chat and just tell her 당신 value your friendship to each other, 당신 don't want to loose her as a friend but what she is doing (list her mis-doings here) are making 당신 very uncomfortable, 당신 can't trust anything she says and without trust your friendship means nothing. Tell her she can't come around to your house whenever she feels like it, she must either be invited 또는 sort it 24hours in advance so 당신 have time to say yes 또는 no depending on what your parents say.
And warn her, if she does not change her ways, and 당신 find out she's been lying to you, 당신 feel that the friendship means nothing to her, and you'll be better off finding new 프렌즈 당신 can trust. Give her three chances and only three.

I'd say it's worth a try, but don't be a soft touch, you're worth a lot better then that and if you're friend can't accept that (even though you've given her the chance to explain her ways and ammend them instead of just ditching her) then i'm sorry to say but the friendship was a poor investment for you, and 당신 are better off without her.

seams like 당신 have an adopted sister, one 당신 cant shake off at the moment. but it seams to be getting worse, telll her its time to grow up, and tell her, but be cautious,let her know that the freindship is wearing thin, and that 당신 want 또는 would like to be freinds forever, but she is starting to cramp and overshadow, and become someone 당신 do not like. 당신 dont mind her company but back off a bit, for 당신 do not want to start to hate someone whom is becoming bossy and wants to be right all the time. 당신 want and deserve an equal freind, one who is able to listen not just argue. tell her 당신 have some things to do on your own , better to lay the cards on the 표, 테이블 than have to start avoiding her. its probaly already affecting your style and study.hopefully this freindship has come along its first hurdle , 당신 value the friendship, and 당신 brliev it is worth that. but as your friend she either listens and understands, 또는 당신 lose your shadow. but 당신 want your freind back, for this one 당신 walk with has changed and 당신 do not like it at all, take care, and good luck, its up to u now,chin up, let her know 당신 need tyo talk, but she isnt allowed to speak until u have it out upon the table;-]

ok well i kind have this friend whos kinda like that she askes me for 조언 i give it to hear. she always wants the truth but when i do tell her she gets mad. she always ends up falling for the wrong guy after i worned her and she is always makeing bad chioces.I say u need to talk to ur friend tell her that u dont want to hurt her 또는 aru 또는 anything u just want to be 프렌즈 hang out have a good time not constently be gowing threw crap. tell her how u feel even if this has to be oveer the phone for her to listen friendship is importent and u need to try and work it out

To be honest probably not. Dont worry though 당신 are not the only one I have a similar situation. I made the mistake of telling my friend the truth of how I felt about what she is about to do so now we only communicate 의해 이메일 and then its me who sends one and then waits for ages before she sends back an appologetic reply. I really do not know why I bother.

Yes. Fuck yes. Just go up to her and tell her straight.
'You're a bitch, 당신 treat me like shit and I don't want anything to do with you. STFU AND GTFO' <--- say that!

I had a friend like that before. She was always mean to me and my other friends. On 일 she called me ugly during class so I looked at her and told her that her insults didn't hurt me. Then she said "oh really cuz last time u almost cried. So I got
up looked her in the eye with my dead serious
"I'm goona snap your neck face" and said if 당신 really like putting people down like that then maybe u AREN'T my real friend.
(when I said that the guy In front of us laughed mainly because no one usually stands up to her.)

Well after that she shut up and did her work.

From then on she stopes treating me like crap.

The only reason she's mean to u in particular is cuz she feels she can walk all over 당신 so just stand up to her and it'll be alright