Psychologically speaking, 1L will be remembered as long as it is not played well, while others will think about it if it is not played well. It is normal to play badly, and it is easy to be found if the opponent's score is higher than yours.
Just because a teammate doesn't play well doesn't mean he will lose. High-end games often happen 4-5 times, but they can still be turned over. Encourage teammates to refuel and brush the troops. Anyone with equipment can play good damage and absorb damage, and naturally it is easy to win, regardless of his teammates' poor playing.
If you have any questions, welcome to the League of Legends think tank.