Bad luck streak
So i know this may be marked as a rage post but i'm willing to show my stats: https://euw.op.gg/summoner/userName=bloodyfool so as you can see my winrate is alright/good (55-58%), my KDA (3.1 / 4.8 / 14.7) is alright for the most part i think anyway given i play support but i literally have these streaks as in... there's a time when i join the ranked queue and get decent players and win about everything with the occasional loss... but then there are also times that i literally get the most horrible players X amount of games in a row and it's just not funny anymore...
I always try when we're loosing to give tips and kind of guide them around a little bit but in those games i literally feel like i have to be EVERYWHERE to at least get something productive out of my team because otherwise it's just plain dieing and feeding everywhere.. and then i still loose....
My qeustion is do other players also experience this? or am i just unlucky at times and truely get the crappiest of players presented right after another?
Another qeustion: why is there no system in place that the game just detects okay that guy went up to 10 deads in 15 minutes, let's cut the others some slack cause nobody can carry that much load on his/her shoulders?