I suggest she tries to stick it out for longer (lecturer here), keeps going to everything, keeps up with her work, and reassess later on: if she's on a three year course, she can get funding for a second first year (if that makes sense). People often struggle for the first six weeks or so - I often tell my students not to go home in that time - and then it comes together. Since I've been Admissions' Tutor, we have had people fail to engage (not show up) but no-one has switched universities at all. She could think about also talking to her personal tutor/college tutor/chaplain/student services etc? At university, you think everyone is having a whale of a time, and mostly, they're really not. I fucking hated all three years of my undergrad, and it was astonishing to everyone, including me, that I returned to the same place ten years later to do a Master's (because it was the best place to go): I loved that year! There's a lot of expectations, especially now, around university, and it fails to live up to the hype for a lot: some people don't really get things together in terms of feeling a fit until second or third year, but I've only had one final year student in six years say that it was the wrong decision to stay - mind you, he had very serious MH issues, refused to take any time out whatsoever, and ended up, despite our best efforts for him, without a degree, so I do see his point.
I have also stopped accepting transfers into our second and third years from other universities during this time- it sounds harsh, but generally, someone who has had a problem at their previous university continued to have problems in their new university. Rarely has whatever was causing the issue been solved. But people who were doing the wrong course or at the wrong university for them coming into our first year - bring 'em on! We get a number every year, and all doing just as well as if they'd come to us in the first place (plus, they are really appreciative of our efforts, especially those we pick up from the RG university just up the road :-D)