A week into my new job

I am now on a 3 mth contract with a British MNC. 

Most of the bosses are Brits, and boy, I love the British accent. So far, I feel ok about the job. Not in love with it, but not hating it for the moment. 

The sales targets are ridiculously high though. I wonder if they'll keep me for the full 3 mths, because I really don't think I can hit those targets. 

But hey, if my other colleague cant do it too, then the problem doesn't lie with me right?