I wonder if:
is unhappy with the course content - she feels it does not match up with the course criteria
and
The main problem is she feels incredibly lonely
are connected?
I don't think that a student less than half way through a degree programme is really in a position to be able to judge course content in the way she is - I wonder (speaking as a very experienced tutor) if she's projecting more general unhappiness onto her course?
If she has an issue with group work., she needs to strategise about ways to stop feeling she does all the work. I teach a subject that requires group work, and we do a lot to ensure that students contribute and realise why they need to contribute. We also urge students to talk to each other about how they share the work, and how they deal with those who don't take satisfactory responsibility.
Thing is, many many many workplaces and jobs require that people can work in teams. So in tackling her peers' apparent laziness, she will be developing really key employability skills.
But the other thing is, as a tutor investigating student claims of others not doing the work, I tend to find that it's not always so simple. Sometimes, those who feel they do all the work overlook what others contribute. Sometimes they require others to work in their ways. Sometimes they don't listen to other group members. And sometimes they really are taking on too heavy a load.
So can you talk her through some of this? Help her to strategise & break down the issue with groups into doable tasks - including productive ways of challenging her peers' perceived lack of contribution?
If I were her tutor I'd be asking about extra-curricular activities - what could she do at university that she's always wanted to do, but hasn't been able to do? There are amazing opportunities at university to learn new things (at very low cost). My university has a fantastic riding club for example, and you don't need a horse. And a top sports centre, as well as a student radio & TV station, and a newspaper, and umpteen drama societies. And so on ... My students sometimes seem too busy for their studies (that's another story).
When I was an undergrad, I belonged to a student society that was very active, and my extra-curricular activities were part of what got me my second academic job and my subsequent career (as well as my PhD etc) - and it's produced some of the leaders in the more general employment field (my peers in that student society now are amongst those who run the industry). So extra-curricular activities together with academic excellence can really help.
The student society I belonged to had a reputation for being cliquey. I knew nobody there when I joined it - but just had a passion for the activity. YOu know what? It wasn't cliquey - it was just that they all knew each other, and us new members were that - new. We joined in Freshers' workshop sessions, did a lot of the grunt work, worked our way up in the group, got to know people, took on more responsible roles, and hey presto! By 3rd year some of us were on the committee.
That's how it works ... She just needs to get started, be willing, offer to do stuff, and get to know people. These groups only look like a clique from the outside, because the current members know each other. But remind your DD - the apparent clique were all newbies once!