Would it be interesting to introduce the role of coach or an assistant with you at a Premier level tournament? Someone you can discuss moves with and maybe see the angles you've missed, and act as your second to provide moral support when required. Of course, it would be slightly unfair if your opponent didn't have one, but given both players have access to one?
(Edit: Rewrote, I'm not suggesting that you bring a coach, that it would be interesting to introduce one.)
Edited by Darth Ruin