Since a todo-list with 3 items is too long for me I have decided to focus my tournament preparation on visualization and endgame strategy. Forgetting about reasoning. The bulk will be endgame strategy. When I'm tired of that I relax with some visualisation exercises. I don't expect the visualisation exercises to be of any use for my chess, but I want to learn it anyway. It is meant as investigation of how to learn to use the LTM.
Ok, now let me gather some books.