Bed rest and a large steaming mug of hot chocolate. I always find that cheers me up.

Well, he should have some chocolate, at the very least,' said Madam Pomfrey

Failure gave me an inner security that I had never attained by passing examinations. Failure taught me things about myself that I could have learned no other way. I discovered that I had a strong will, and more discipline than I had suspected; I also found out that I had friends whose value was truly above the price of rubies.

Happiness can be found, even in the darkest of times, if one only remembers to turn on the light-Albus Dumblodore