From time to time, people post here, asking how to improve. Try this:

"You must abstain some days from meat to clear your brain, and also let blood. You should take purgatives and emetics to drive away the humours, and must above all be sure to confess your sins and receive spiritual absolution just before sitting down to play in order to counteract the demoniacal influence of magic spells."

So that's what I'm doing wrong--I'm not doing any of that.

From http://sport.guardian.co.uk/chess/story/0,15873,1665868,00.html