I went through your match history. It is actually pretty rare that you do better than your team mates in your losses. When you are actually better than the rank you are playing at you will be able to do good whether your team wins or loses.
I am not sure why people make these types of posts.
If you are playing a carry champ and building inefficiently and not dishing out damage, you didn't do well.
If you went 8-9-10 and you had an ADC go 10-5-16 and a top go 16-6-2, you got the loss you deserved, the ADC deserved 100% to win and the top at least 75% deserved to win.
If you go 6-7-13 as a carry and do the same damage as someone that built full tank that went 8-4-12 and had another full tank go 12-9-11 and do 16k more damage than you, you deserved the loss, those 2 didn't.
If you go 6-11-11 and have a team mate that went 17-8-12, which team mate made it so the team lost while they carried? Was it you or the guy that did 54k damage while the next highest in the game was only 36k?
If you go 7-11-4 on a carry and again barely out damaged the tanks while you had an ADC that went 13-9-6 and did double your damage, was your team mates once again bad and uncarriable? Or were you again that guy that didn't contribute to a win?
I didn't have to pick and choose through your match history, these were your last 4 losses. I could go on and show how you aren't doing the " I played my mains and carried but seems like my team mates are not cooperating and or it is a very tilting game, which causes the loss." that you claim.
You won't get better when you focus on your team mates for your losses. All of your games, all of them, were winnable if you were better than the other team. A lot of your losses it looks like you had team mates that performed pretty damn well. They built right, had good gold income, good damage output, good overall stats while yours were well below average.
Focus on yourself if you want to improve, stop blaming your team mates. If you are better than the rank you are playing at then you will do better than the people you play with, win or lose.