Pass the qualification of official exam

Now,i have passed the qualification of official exam that will hold up in the next moth.Despite i passed the check,i don't have enought confidence to participate in the exam because of lack of study time and lots of candidates for this position.
But i don't give up the chance to pass and the opportunity to work in the government.I think there is a way to woke and to succeed.I hope i will have a good luck,hei,hei...