English talent show

My school has a English talent show (There is an English talent show in/organised by my school), and my teacher asked me to attend. Tomorrow has a preliminary contest. (The preliminaries start tomorrow). I think i can do my best in it. (It is enough to say "I will do my best". Or you can say "I hope to get good results/I hope I will be accepted/I hope my score will be high.)

Note: Well done, congratulations and good luck. Your English is already very good.