I seriously hate playing a series

I have this need to let off steam.... I've had to play the series from G5 to G4 way too many times, its double digits somewhere, I lost count after 15. I've won it a few times, climbed for a bit, even got as far as a series to G3, lost the last game though sadly. Recently just got to G4 however then got stuck in a losing streak until i get demoted. Either because of trolls, afks, or smurfs. And it's only like the become so vastly numerous when I enter a series. I'm really tired of playing this series. Just the last time now I reentered this series going on a winning streak that followed my losing streak, after I managed to untilt from my sadness and frustration due to that streak where i felt powerless to change the results as every game I had one or two people saltier than the ocean, or even as much as an entire team wanting to rage at eachother more than they wanted to play the game. I was doing pretty decent in my winning streak after i finally got people willing to play, minus a bad nidalee game and then got into the series pretty quick. Both times I had an AFk within I believe the first 5 minutes of the game. First a gnar who versed a fiora, fed 3 kills then rage quit, didn't even say anything just left. Tried my best as corki to do dmg, even did the most damage of the game, maybe as a team turn it around, but to no avail, surrender at 20. I went into game two right away thinking no way that can happen twice in a row, now do I know wrong. Last two picks I guess wanted top and neither wanted to go mid. This was looking bad, they picked rumble and jax, I wanted to dodge but can't because that would have meant that I would auto lose my series, so I went with it hoping someone else would dodge or one would suck it up and play mid, both locked in their choices however one could still go mid with those choices. They would vs an ahri so it coulda been worse but do able. However Rumble decided to never even connect. Despite how hard I tried to maybe go for a 5v4 carry, even starting 3-0 it just wasn't possible especially after their entire team could roam bot, even tower dive, with no punishment. To make it worse the entire enemy team decided to be rude about it and keep referring to the game as if it were a "bot game"......Surrender at 20..... Playing a series just sucks so freaking much, I really can't wait until they go through with their series change ideas. The fact that it doesn't matter how well you do before, all prior games mean nothing now because the next few games are far more important and yet just as easily screwed over.