Don't get stuck in a rut, don't tilt out after a loss or series of losses. If you start playing sloppy or angrily, take a break and come back clear-headed.
Don't let past events skew your judgements. Maybe a card under-performed or over-performed in one particular game, but don't let that throw off your value judgement during your draft.
Maybe you had a similar situation on board that the opponent drew the perfect answer to - that may have been just bad luck, and 9 times out of 10 you would have won otherwise, so you should play the next game the exact same and take that 1 in 10 loss to boost your overall win percentage. (Or maybe your assumptions are wrong and you've been making the same mistake again and again...)
3
Well, Firebat hasn't exactly set the world on fire since he won Worlds in 2014. Pavel also took quite a break after winning Worlds, and his result after that was far from great. Tom was in a tough group, so his results reflected that.
People who are at the top of their divisions are there on merit. There are tons of games where close decisions matter. You could even argue that this league format is an even better test of skills than the tournament-style World Championship.
1
Happened to me here as well, won't complain though!