Hard Stuck Silver

I am a mid laner who is currently Silver 5, with my highest rank being Silver 3. My main mid lane champions are Ekko, Ryze and Taliyah. These champions all have strong early kill pressure, great roaming and wave clear which fits into my playstyle. I have very good mechanics on all 3 of these champions, and I understand how to play most mid lane matchups, though my game knowledge could probably use a little bit of work. My CS isn't always great, but I am usually ahead of my opponent, and I almost always get first blood in my lane. The thing that has been perplexing me is just how impossible it feels to get out of Silver. When I get kills in my lane, I immediately push the wave in and go try to snowball another lane, but it always feels as though my top or bot wants to feed so hard that it's impossible for me to carry. Even as a 7/1 Ekko I'm no match for the bot lane that is 15/4 because my Support and ADC apparently have no idea what they're doing. Or I'll be doing fine in my lane farming and my Jungle will try to force a gank in the middle of a cannon wave, fight the other laner under tower and suddenly my lane is down in kills. Not only just the in game stuff that seems to hinder my teams chances at success, but the pregame as well. As soon as I get into a lobby I will immediately greet my team and then begin to ask what everyone is playing. Say we have a Zyra/Lucian bot lane, a Teemo top, a Ryze mid and a Twitch jungle. Great, we have early kill pressure but absolutely no engage and no full tank. I'll kindly ask our jungle if they'll go someone tanky with engage such as maybe a Sejuani or a Shyvana. I'm immediately met with "fuk u i kno wut im doin." Then the other team picks the comp with Maokai, Annie, Sejuani, Lulu and Kog'Maw and we get absolutely wiped because our jungle is basically just a second adc and they just get picked off every team fight. I picked up a chat ban because of what I told the Mordekaiser Support and Vayne top during our game who were a combined 5/25. I even played with one of my friends who peaked at Diamond 1 yesterday and we played a game where he was 8/1 as a jungler and I was 4/2 mid lane with about a 120 CS lead on the opposing Ekko. With a 4 item Ryze, I'm extremely strong, but I could do nothing in team fights as my adc and support, combined 3/11, would try to frontline and just get wiped and then we'd have to retreat because of the 3v5. Now I know I'm not a god tier challenger SKT T1 player, but I definitely feel as though I don't belong in Silver where no one takes the time to master their champs or their matchups. These players don't understand simple game basics. They think that because my lane is 1-0 and theirs is 7-5 that they're doing so much better than the rest of the team, when in fact all they've done is given their laner unnecessary gold that they can later dominate with. I'm constantly working to improve my gameplay, through CSing practice or just reading about mechanics and matchups, but even with all this preparation I can't carry hard enough to win games. I think if I ever made gold I could probably carry myself up to low plat because those people at least have decent game knowledge and the disparity between skill levels isn't as obvious as it is in Silver. I know it's possible to climb, I just don't know how any more when my carry never seems hard enough.