Win 18 or 15 lp lose 20, man i love it. I've been getting perfect scores and team usually likes me but i get so disappointed when i see the amount of lp i receive, it really takes me down. When shit goes down and i lose for various different reasons i lose 18-20 lp. This kills a man...
Your MMR is lower than the avarage MMR of your games, nothing you can do until either you drop to where you belong, or, improve at the game to the point where the system notices a difference in your game performance and readjusts your MMR so you will either get +/- 20, or win more than you lose.
This may sound like advertisement, but try the Blitz app (Link: https://blitz.gg/invite no, I don't get anything, that's just a link made to take you directly to the downloader). Before matches, it shows you builds that can be auto imported, if you want to, it gives you tips against the enemy in your role, including power spikes, weaknesses, etc, and after the game, there's a tab on the side with good/bad things you did. That can help you a lot by telling you what you did well, so you can focus on keeping doing that, and what you didn't too well, so you can focus on improving that.
Then there's the Mobalitycs site, that does give more tips and info on what to improve, and keeps track of your progress.
