There you go - three A Level passes out of four.
But are these grades enough to get you promoted to Yr 2? They
should be, right?
If they are, then don't fret. Just make sure you take your work
seriously in your second year.
And most importantly, be consistent. Pay attention in lectures. Do
your tutorials on time and to the best of your effort. Study
conscientiously for your tests (and there will be LOTS of them in
Yr 2), and don't fret if you mess up a few of them.
I know that it would always seem as though there is very little
time. Instead, tell yourself this: 'I have one year to prepare for
the A Levels'. So really, you have a lot of time.
In short, you have lots of time, and lots of chances. So don't mess
it up while you still have the chance to shine.
Believe me, when you get to uni, you'll have much less time (less
than four months per semester) and much fewer chances (one single
screwed-up test = spectacularly screwing up that module).