Clarinet

In band you have to choose an instrument.I chose the clarinet.
Right now I'm practising and I've gotten pretty good at it.

So far I'm not all that good,I even suck at the high notes.
In my music books I can play up until page 26 or 25.
There's a lot of people in the clarinet part.
So now I'm getting better at playing the high notes but I still seem to squeak.
If you play clarinet,tell me how you're doing with your clarinet.
If you're better than me,then give me some tips on how to play this tricky instrument