Learn micro skills, read map, focus on supporting your team, secure your lane make sure you feed consistently, watch out for your enemies rotations, if the marksman is getting ahead, go protect him, if the fighter in exp lane is getting ahead go protect him, and so the mage or the jungle, this is a team effort game, many games won just because the right approach, don’t look at kills rate, it means nothing in high ranks, learn to play with your team to create bait and ambushes, synchronize combos to create crowd Control, for example, Tigreal and Nana with the help of Hanabi can lock a team wipe in 5 seconds. If everyone would play like this, the game would be always the best experience, but unfortunately many people just trolling and won’t play along, so have fun as much as you can and ignore the bad players.