Dont worry too much, like Jug says, get the papers back, meet with your tutors and see what you need to do.
Also with university, they will sometimes accept you even if you dont make the grade. i.e I did four A-Levels (the old proper A-Levels, none of this half a level stuff) and made a complete balls of computing science and didnt do as well as i could on one other. This left me several UCAS points from being able to study on the course I wanted at UCLAN.
So on exam results morning, theres me stood like a lemon thinking I have made a tits of everything and I have to go and study a course i wasnt too keen on (had enough points for that). I get home, ring up UCLAN and find that they accepted me, even though I had less than half the points required. This, they told me was because of my personal statement in my UCAS form.
I then went onto study my degree at UCLAN, pass with a second class honours and now work in a job that didnt need a degree, has nothing to do with anything i have ever studied but it has helped me!
Dont give up all hope yet