I agree with Blunderprone !
"I don't want to add more knowledge, I need to practice applying the knowledge I already have"
This is my montra for preperation for my tournament on Saturday in New Hampshire.
To prepare I have
1) Done a ton of circles on basic checkmates the 50 in HTBYDAC
2)Circles of Level 10 and 20
3)Reciting the positions on the chessboard from Black and Whites perspective to reduce stress of recording moves
4)Knight site drills
I am trying to keep the same openings and do precious little additional learning. It not the stuff that you don't know that kills you. It's the stuff you should know and don't apply I am worried about !