Why is it so impossible to get out of silver?

My thoughts are that I can NOT get out of this league regardless of how hard I try. I've put off writing in the forums due to the possibility of my either being tilted, or rage full , or what have you. However, I can not just sit here and be silent anymore. I've been in silver since the beginning of this season and I was silver 1 in the previous. Putting in all the effort in order achieve getting to gold or higher. I play the support role and I try to educate and encourage my team to do things in a specific order. This just does not happen, they will attempt to split, or they will go somewhere without warding, or they will face check a bush and insta die. I've heard the shpeel about carrying your team(I've DONE IT), I've heard about not dying and playing tankier roles (I've DONE IT), I've heard about warding (I've Done It). I've heard and have attempted to complete it all. It just doesn't do a god damn thing. The match making is stupid and puts me on teams with nothing but feeders. Or with players that honestly can not take objectives in the order that every single other player does. I also love getting yasuo on my team, I already know that when he is its a loss due to everyone that plays him trying to be a hero. No one carries wards, no one can just farm before team fights or wait for their jungler to aid in the gank. I love playing this game due to the challenges, But I've reached my peak as far as being able to ascend to the next rank. What DO I do?

p.s. I can say so much more about this but i already know the majority of this rant is going to be disregarded and troll information is gunna be shared. If you dont have anything encouraging to say or information that I just dont already know. Then please refrain from adding any text to this forum post.