14 year old dd behaviour! Nothing working

[Nottsangel2015]

So my 14 year old dd has had an attitude for a few years now I thought was just normal teen behaviour. We moved area in spring last year and we had to change schools.
This is where it got worse. She got in with a group of girls who are always in trouble. Now her attitude at home stepped up and so we discipline by taking gadgets and grounding how this has become less and less effective to the point she just says I don't care.
Today school have rang me and she's been out in isolation for the next 2 days due to getting involved in an altercation with another girl and then her attitude. The teacher has confirmed that she has an awful attitude at school with them and doesn't care or show any remorse! She is already grounded for her attitude last week at home and we gave her no timeframe to be ungrounded.
I don't know now how I can deal with this. I'm more concerned about the lack of remorse and respect to the teachers.
How do you discipline when taking gadgets alway doesn't work any longer?
Anyone any advise on how I can help her. I just don't know what to do with her. I can stop her hanging around with them at home but nothing I can really do when she's at school.
Please help I'm at a loss how to resolve these issues with her!

Hi OP

Sorry I can't help. I just posted a similar thread on here and read yours afterwards. It's hard isn't it? I hope you get some responses soon.

Thanks @Lemonsaretheonlyfruit sorry your going through similar! Nice to know not along though! X

Because she doesn't care about repercussions or feel remorse I don't think punishments are going to work tbh. I'd go with the viewpoint that all behaviour is communication, and she's not able to express what's going on for her. How is your communication with her? Maybe try the Nurtured Heart Approach by Howard Glasser. It was developed for intense children.

Thank you @NotNowPlzz I will look into that! Anything is worth a try.
I had to talk to her last night about it and she just says she does it because she likes it and it's fun and exciting to get in trouble and she doesn't care about the consequences. I don't even know how you respond to that! I thought maybe it was her mates been a bad influence but apparently not there is another girl in the group who is friends with them but doesn't involve herself with the bad behaviour so they obv are not forcing it. Shocked she is choosing to do it because it's fun!

I would return all her devices. Return all previous privileges to her. And then sit down and say you're doing this because it's time to start afresh and with trust. Talk to her about why she's misbehaving and what you can do to add support and help her. Say you'd like to move forward with trust on both sides and if she is willing to try, you're willing to help her and reward good behaviour

The problem with removing stuff and grounding is that you back her right into a corner and she - literally - has nothing left to care about. So give her back the things she does care about and try that

Might not work of course, but worth a go as it'll certainly surprise her. Think of it like a toddler sticker chart