* Greg's fight with Rowley: This leads to a major rift in their friendship, leaving Greg feeling isolated and remorseful.
* Greg's failed attempts to impress his crush: These failures highlight his social anxieties and insecurities.
* The Cheese Touch incident: This event, caused by Greg's selfish actions, results in him being ostracized by his classmates.
The climax is Greg's decision to stop trying to be cool and start accepting himself for who he is. This realization comes after he experiences the consequences of his own actions and realizes that trying to fit in is not making him happy. He chooses to value his genuine friendship with Rowley over trying to impress others.
While the book doesn't have a dramatic, single-event climax, this internal conflict and Greg's decision to change his approach to life represent the turning point of the story.