By Tzvi Machlin Kevin Durant and the Brooklyn Nets sit on the brink of playoff elimination after falling into a 3-0 hole against the Boston Celtics yesterday. He has not played well this series, and he had a troubling admission after last night’s loss. Speaking to the media, Durant admitted that he’s been “thinking too much” for the entire series thus far. He said he’s been overthinking his approach to the game, but he’s looking forward to the next one. “I was just thinking too much, to be honest, this whole series,” Durant said, via ESPN. “Like how I approach the game. We got another game to …