LP

I don't understand. I'm silver 4 with 94 wins and 83 losses total, 4 games ago i lost and I lost 18 lp. then I won and gained 20 lp. Then I lost and lost 20 lp, now I won and gained 18 lp. Before I was getting something between 22 and 24 lp per win and losing 17 lp. Why the sudden change?

On a side note, I just lost 38 lp in 2 games. Teemo and xin zhao support. And they're the most toxic fuckers you can get. I'm getting a's and s's in the games i fricking lose. Last game, I did more damage than riven, tristana and xin zhao put together. Basically i was 3v5ing while xin zhao was afk splitting. Which is okay, xin zhaos are supposed to split push. BUT THEY AREN'T SUPPOSED TO BE FRICKING SUPPORTS. And I want to dodge, but because I get penalized for that, I don't. Because maybe, I can 1v9. I could do it in bronze, maybe i can do it in silver. Nope. 99 lp, and then i just get trolled to shit. Basically, all my games look like this: just focus me because my team is useless. The enemies completely ignore every other person, dive behind the tier 2 tower to kill me at inhib tower. I take 2 with me, but the other 3 just clean up my team because they are seriously bonobos. If I duo, it's basically a guaranteed win because it's for sure 1 person other than me who isn't missing a brain. It took me almost 150 fricking rankeds to get into silver 4, that's sad. When I duod, I climbed from bronze 1 31 lp into silver 5 76 lp in 12 games. Solo climbing is only possible if your teammates have some idea of the game. And mine generally don't. From putting themselves at a constant wave disadvantage, to gifting drakes in favor of camping in a bush that nobody will pass through the next 5 minutes, to buying multiple control wards and NOT USING A SINGLE ONE, AS A SUPPORT, NOT EVEN IN THE FRICKING TRIBUSH. Constantly tping to turrets that die within the next three seconds, chasing people so long that their teammates respawn in the meantime, just to die to said teammates, gifting nexus to "def top" tier 2 tower, man the list is so long and so fricking painful. Help. I don't know what to do.