So it's all my fault then?

Warning: This is more of me ranting to get my frustration out So I played a game as Sona support and early on it was going well, mid picks up first blood we get some towers. Then come mid game the enemy team starts to group and they consist of Kat, Noc, Udyr, Bard, and Quinn. Our team is Cho, Vi, Yas, Luc, and Me. The enemy team is clearing out vision so I am having a hard time keeping up and most of my team is buying occasional pinks but not green wards to help spread vision. I am running around trying get vision. When I am in lane Kat and Noc come in and kill me and Luc before we can react. Then Vi starts to just get on me about vision control and I tell her I am trying. I try to go ward baron but the place is covered in pink wards and I get anihilated by Kat and Noc. Vi meanwhile is just saying "Sona plz" When she wants me to ward and then when I die trying to do that she is getting pissy bout it. Also, Vi is diving solo into their back line and dies like 5 times and nobody cares, yet if I die warding objectives its a really big deal. Then at the end of the game when they are killing our Nexus Vi just types in "GG Sona Best Support" So I guess cause I am support I am held to this ungodly standard to where if I slip up in the tiniest way everything to blame is put on me. Meanwhile we got a jungler who flashes into drag pit to fail at stealing and dies and diving solo into the back line and dies. I love logic in this game Sry for Rant, Vi just really made me mad with blaming everything on me