Hi, my name is Venaven and I started from Silver two seasons in a row and worked my way up to diamond by playing support almost exclusively. You being stuck in silver isn't due to the league you're in, it's your inability to understand how to properly climb with your role. Silver is incredibly easy regardless of the role you're playing provided you actually are of a higher skill level than the bracket, which you're clearly, evidently not.
Sorry that this sounds rude, but the reality is simply that you're not as good as you think you are and if you're stuck in silver, then you do in fact belong in silver. Of course you've picked a role that you believe to be low impact if those around you are less skillful, because that way it's easier for you to believe that you're just "trapped in elo hell", but the reality is that supports carry harder than ADCs ESPECIALLY in lower elo during the laning phase. You don't actually know what you're doing, and you are in fact a silver skill level, sorry.
I know I'll probably be downvoted to oblivion by players who are also trapped in silver and bronze and believe that it's due to their teammates, while they fail to understand that you need to carry in order to climb, and that, regardless of surrounding ineptitude, carrying at lower elos is incredibly easy if you're actually a high skill level (ie not silver or bronze), but oh well, it's to be expected. If you actually want to climb, you need to be willing first and foremost to accept that it's your fault and you need to improve, even if everyone around you is bad, you need to get better in order to carry them, and if you can't do that, then you're bad too, and you probably are a lot worse than you think you are and don't fully realize your own mistakes, of which there are an innumerable amount at lower elos, because even in platinum or diamond or beyond players still make tons of mistakes. Having to carry your team, a team which appears "inferior" in relation to the enemy's team (due to bias and an inability to swing the momentum of the game properly) is something that never goes away, and in fact only gets HARDER as your elo rises. If you think that you're "stuck in elo hell" because of your team and carrying against the enemy team is too hard, then in what universe does this become easier at higher elos? It doesn't, it only gets worse and gets harder to carry because everyone involved is more skillful, yes your team will be better, but so will the enemy team, and your team is only "better" when compared to lower elos, but in the context of its own elo area it's on equal or slightly worse footing than the opposition usually, and with a larger skill pool to work with all around, all plays have more impact and more consequence, thus there is far more weight placed on the player wishing to carry, as there is less room for error and more effort required to overcome the skill level they're up against overall.
support and my teammates always dive or something stupid thinking i can save them...like...come on...It is very irritating I can say that much.
and kill everything! you could escape silver >.
. Start with 
and some blue pots. Take Q>W, with later levels balanced depending on whether you need the damage or heals more. (I usually max Q first.) Build 
followed by 
for even more self-healing. Then just start stacking AP... good odds that since your lane is probably winning (because your carry can't die) the enemy will be building more armor than MR, so you'll melt straight through them with those 5-second Starcalls.
as soon as you can to use effectively W (and no, going with 
does not work because Raka still need mana regn to spam skills)
