Make sure you don't get obsessed, it hurts so much more if you really get into something. I applied to Cambridge with the attitude of if I get an interview I'll be happy, I did little research about the place, course etc, and never went to visit there as I didn't want to fall in love with the place. As you can imagine when I got rejected it didn't sting too much as I never gave myself the chance to fall in love with the place. The only thing it did was dent my ego, which heals in a few weeks anyway. I can imagine it metaphorically stabbing you in the heart though if you've spent months getting your hopes up and really wanting to go there. Anyway, good luck, and if you don't get in you'll most likely end up at another top university, otherwise you wouldn't be applying to Oxbridge!