With friends sometimes the competition strains things, which is why I made that point. Also, whilst you may have a talent for school, try not to define yourself by it. Dont feel the compulsion to prove yourself to others or to the world because it can be a dangerous spiral, especially if you fail to live up to the expectations (I'm not saying you will or anything). I know this sounds ridiculous, but a lot of people struggle with the mental/emotional side of the HSC - and this is something which I really try to help people out with on BoS.
So just take care of yourself in that respect because it is something people often neglect.