What should I do?! (foundation degree)?

So, my problem is my college. I am currently taking a foundation degree in media in neath college, but it's connected to the Cardiff Uni. I will probably fail. The level of teach is laughable (except 1-2) and we don't get any help. My class always gets letters threatening us that we gonna fail, they gonna cut our loans etc. We also have ongoing group projects, which doesn't help, since our class is like 4 people, and we don't really get along. I don't know what to do, because if we fail 1 group work, we will fail the whole year. I also struggle with photography. I try my best, I stay in until late, write a lot, my my lecturer still not thinking that what I do is enough. I also come from another country, which makes it a bit harder sometimes, but she never ever helps. I can't sleep at night, I feel that this course is nothing, I haven't learnt anything! I think it's not just a waste of time, but a waste of money! What should i do? :/