teacher...???

Sometimes i do wonder whether i can be a teacher. there is this tint of doubt in myself about myself...
Haihs....
It is as though whatever i studied is not in my mind. What i am going to teach my future students? I wonder...i wonder...
I am scared... i only have another 2years before becoming a teacher... and here i am still doubting myself....
moe...moe..... What's wrong with you....??/