A team noobs in ranked ...

Right away, good morning. I, a normal player of league of lengeds I have been playing Ranked games to be able to complete the missions and to ascend of rank and I face myself with 3 consecutive defeats ... And then I start thinking, I only play ranked with champions that I know how to play, I do not die more than 3x for the enemy team, I kill at least 4 opponents, I help my team, so what's wrong here ????? So, I'm looking for my teammates ... elements the stay AFK ..., elements with 0 kills / 9 Deaths / 3Assists ..., elements that commit suicide ..., disconnected elements of the game (the whole team to defend the nexus and another element to farmar in the jungle ...) ... And that's when I conclude that playing 4 matches won 1 match ... having presented results as 6/3/2, 6/4/1, 6/2/19, 3/9/24 ... and then even if I playing minimally bood, well I will get a ranking in the ranks inferior to bronze! [sg-ahri-1] In my opinion something here it is very bad... Please It's extremely unfair...