Playing with bad teams

Look at that link and when you see the stats i ended with you will think i am the worst noob ever.

Truth is by like 15 mins in i was doing 3/0/5, i had got my top lane pant 3 kills by that time and got me a triple right after getting drag. Lane phase was a sure win despite my ADC being AFK from the start till about 5-6 mins in. I even remember saying "gg" to the other team at about 15-20 mins in because the teams were 15/5, we had just killed like 2-3 of em and took their bot tower. The enemy team also thought they would lose.

Then it happened, it hit late game and my team was horrendous. I had told the pant to be a bruiser because we had no tank and he goes for a semi bruiser. Everyone on my team was scared to ever engage and would LITERALLY watch the enemy take down our towers while they are under it. The enemy Vayne started racking up kills and i found myself initiating a lot of team fights to which my ADC either runs off early or my team just doesn't really do much anything. Of coarse at this point i am mad as hell, i got this Pant so fed and he was useless late game, he wouldn't initiate team fights and he, to my knowledge, only roamed with his tp/ult once. My fed mid laner fell off very hard late game, and the Support Velk was useless.

I want to shoot someone now. Not to mention my mid laner Karma was complaining about how i should've picked Wukong which i had, bu then changed to Yi. Yes i would have rekt em with Wukong. but we definitely didn't lose that match because i didn't pick em, we coulda easily won. I don't understand how i can get a team like this where EVERY single freaking one of em is useless late game after destroying their lanes in lane phase..... Seriously, i've never seen it this bad before, i should have and from now on will take every single gank kill instead of giving them to the laners because my God are League players freaking bad. So then i end with that score, sucks bcs i was so hype that i was doing so well and we as a team was doing so well early and mid game... I really can't, this is ridiculous.... I am seriously so pissed off right now ...