Once again need some advice from the upper echelon

What i need to know is what to do when your team is shitting the bed, and feeding uncontrollably. I did the best i could to be strong and stay safe in laning phase, which went rather well. Small cs lead, solo kill, avoided 2 shaco ganks and got cucked by a third. made a nice tp play bot side for 1 kill and 2 assists with subsequent dragon.

mid is feeding uncontrollably, and bot lane is feeding/trading kills...i see them as pretty much the same thing, the enemy is getting bigger than i can deal with either way.

I got a zzrot on darius (not the sexiest item im sure) but i was vs a shyvanna with mixed damage, and she was pushing so i couldnt leave top lane...so instead of just letting her keep the bulk of our teams strength baby sitting top tower i grabbed a rot - shoved and let the rot pressure top lane and tried to take control of the game...but no matter what i did our mid would run in and die immediatly and it was 4v5 at best for most of the game. This is silver, so i expect this stupidity...I EMBRACE this stupidity.

Now i need to learn how to carry these retards...i picked up darius and shen for top lane just to do this...shen lets me turn around the over aggressive thoughtless dives and engages my idiots get into and darius is a monster....but even in the game in question i was not strong enough full build to make up for these asshats. I refuse to believe it cant be done. I may not be skilled enough, but there has to be something im not doing or doing incorrectly that can help bridge the gap between my individual skill and losing these games.

HEP MEH!!!!

I am trying to get my ass out of silver if anybody has the time or inclination to give me some advice i would appreciate it.