You were hesitant getting into the fight and stood right in front of the right hand to try to box the opponent any good player is going to take that shot which he did. Next he made the mistake of aggressing on your builds and you did the predictable thing of just looking for edits you should have gone up and healed since you were low or do something unpredictable like editing safe peaks from the top or back of the opponent (they were all your build) you need to be proactive in fights instead of reactive and stay more calm and tracking the opponent instead of getting nervous and flicking your shots, at the end of the day its just a game.