What am i doing wrong? (30% Win rate)

Please check my match history and my recent games with Lux mid lane: [Match history](https://matchhistory.eune.leagueoflegends.com/en/#match-history/EUN1/1967958048493888) I have 30% win rate so i think I'm doing something wrong (The 60% win rate is for the recent games, my whole season ranked win rate is 30%) Please check this pictures too: [Picture 1](https://i.imgur.com/ixKAWG9.jpg) [Picture 2](https://i.imgur.com/Lif9gcZ.jpg) [Picture 3](https://i.imgur.com/mtnS59h.jpg)
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