Downward spiral in ranked with no hope in sight

It literally feels like a chore to even attempt ranked in these last few weeks.

I had trudged up from getting placed in silver to my plat promotion series before matchmaking decided that I don't really need a new border and found interesting things to stick me with in place of actual teams.

Picking a champion you CLEARLY have no business playing, trying something dumb because you have a premade (I remember you, Fervor of Battle support...), premades goading each other on and then contradicting their own ideas (Kindred and Katarina don't mesh well when they ult. Shocker. Especially when they're both already feeding) and simply not knowing what to do if they're ahead or behind.

If they're ahead, they'll ARAM until someone dies and the enemy catches up and then lose fights. If behind, they'll keep picking said fights until the enemy is too far ahead for you to even touch.

And honestly? The games become less of a chore and more of a, "Hm, they're feeding double kills left and right... I wonder how much CS I can get before they take an inhib or 20 minutes. Whichever comes first =/" rather than, "Okay, just a little misplay, we can recover from it. If they came from this direction, then the jungler pathed through the blue bot side to avoid the ward rather than down the river, but it's 8 minutes in and they dont have double buff which means we can contest their 4th major camp (purple team red if I lost ya there)"

The latter thought process is more often than not a waste of energy and pinging when no one 1) Listens 2) Know how to execute such a play 3) Untilt themselves from a 4 man gank.

I'm... okay with a gold icon. But 3 seasons of having them feels a bit trashy and I'd at least like to have one account with a shinier one. Is there any way out of the slump?