It's good to hear that you're going in with an open mind and a good attitude. But thinking you're always going to fail is self-fulfilling prophecy! Trust me - it will get you no where. I used to be very negative and pessimistic, but it's really just a very time and energy consuming way of living.
Every time you have a negative thought, stop, think about it, and try and put a positive spin on it. You'll find that it will make everything so much better!

And what better time to start with the new outlook on life than when you're meeting tons of people who don't already know you? Anyways, it's been proven that positive people live longer and are generally healthier than negative people