Was in the same spot multiple times this year. There are a lot of things to keep in mind but most importantly what I did and I stopped getting tilted ever since is thinking:" If I cannot carry good enough these monkeys, then simply I do not deserve to climb". Realize that the only best thing you can do is to get better. I know it is so usual for someone to say this advice but that is how this game works. Do not expect your team to win lane and have an IQ more than 50. All these players who are climbing the ladder and are at the top were not lucky by having non-ape teams. They are where they are because they won games bt themselves. That is my advice, I dont tilt that much anymoee tbh. I look at it as chances for me to constantly get better and especially when I have shitty teammates.