My Most Intense Match

Hi all, this is one of my recent OTB matches for the open tournament of my district. It was against the city's reigning champion, and it was my first time that I played him in a tournament. Time control was an hour each plus 10 second Fischer increment per move, though the game lasted approximately 2 and a half hours. I was white. Although I didn't win, it was by far the most intense, and closest game that I have ever played against a better opponent. This marathon game wore me out so much that I lost the next game in about 45 minutes.

Please try and help me analyse this game.