Having been on an acting course for three years my experience has been very different from a normal university degree, especially since it was a practical based course which has on-stage, performance based assessments.
As it has been stated in another post, do not be afraid to "pop people's bubbles" it's only by going through this that you will grow up. One person on my year was very depressed by Christmas of 1st year because he was facing persecution from his flat mates (two of who were also in the year!). By the end of that year she had left and he stayed. He said before we finished our degree: "that [situation] changed me" as a person, and he did develop over the three years, but there is still some issues he needs to work out.
As we were on an acting course, this did not benefit the dynamic of the group, or those individuals involved. When the girl who started the persecuting left, second year was much better and there was a lot of growth between us, but in the third year we had 9 new people join the course and everything we had done melted away, because we quickly had to change the dynamic of the group and we didn't give any thought to the quality of the work we had to complete, they just wanted to get 3rd year completed and over with.
Maybe I was unfortunate to start my degree with a group of people who were unwilling to change or grow as individuals in order to get the most out of our course. I was the oldest in our year, but I realised after first year that I was dealing with teenagers. So we stuck to our own ideas with the people that we worked best with for the sake of a good grade, and I'm sorry if that scares anyone, but in your third year that's not good enough! By this point, if you are doing acting, your plays/stories need to be layered with hidden meanings and metaphors if you have even the slightest ambition of going professional. Obviously a lot of you are not going into media, but the same rule applies to working professionally in other industries. You need to be able to work and communicate effectively (something I did learn the hard way). Outside of the rehearsal room we had great fun, but for some reason it was not the same inside the rehearsal room, the walls went up and the bubble was rebuilt.
Now, with my graduation looming and my first step into a career looming, I wonder what they are doing. Applying for auditions, or still working in their part time jobs? There is a good lesson in all of this shpiel - If you are unwilling to change and better yourself while at university, don't go. If you don't show your potential employers at the end of your degree that you are not a mature adult who can handle pressure, don't bother. I can tell you first hand they are not interested in your drama.
So in summary: year 1 - Get comfortable with each other, if you don't like the way someone acts, tell them! You may come from a rich background or a poor one, but now you need to fend for yourself, so help each other, and learn to share your ideas so that everyone benefits from the work you are creating.
Year 2 - use what you learnt in first year to create a better piece of work for this year, your lecturers will expect you to complete more during these modules.
Year 3 - take everything from last year and prepare to apply it to your future career. By now you should be ready to look at companies you will be able to work for* because you have been/will be doing similar work on this final, most important year of your degree.
Even if you choose to work for a different industry when you complete your degree, you will need to show off how much work you can accomplish for them, because now you are worth a lot more money than you were without a degree.
*Look for the careers officer at your university, they should be able to help shape your CV and covering letters inbetween modules. Then you can apply to companies that interest you when you finish all of your modules and are ready to start professional work AKA: your career.