Hey im a highly competitive and i just want some tips about Ranked matches. Im in Bronze 5 on my other account and i don`t know how to get out from that division because usually there is afk\troll\feeder in my team so i really wanna get out from that div. I just ask for tricks about item sets and champions and runes if you know any easy, playable champion that you recommend. Thanks for all the summoners that will help me.
Think 
of 
champions 
that 
can 
snowball 
out 
of 
control 
easily 
(those are kinda random examples). Once you know how to get fed early game, dominate the enemy team by making smart plays and not allowing them to come back in the game. If you are behind, play carefully and wait for that moment when the enemy makes a mistake, then s**t on them. Basically if u lose because of a feeder in your team it kind of proves that the fed enemy is a better player than you are. Which could explain why u are staying in bronze V. Good luck breh i was once where u are.
Runes: Flat armor seals, movement speed quints, MR/level glyphs, appropriate flat damage marks.
Items: Wards, I'm sure you've heard that song and dance, but ward ward ward ward.
Champions: Easy champs to carry with are but not limited to 
Gameplay: 2 things, make sure you capatilize on enemy movement. 4 bot lane? Make sure your top takes a tower. Their strongest champ farming top lane? Start a 4v5 teamfight. Secondly if you have a dc or teamfights aren't going your way learn the art of splitpushing ( 
and
are especially good at this). Just keep top and bot pushing as much as you can and when they group for pushing mid keep going and hope your team can hold out long enough for you to get an inhib. Repeat until win.
my brother in law said that the best way to carry your way out of bronze is to practice/play support and let your allies get so fed they carry YOU out of bronze after all, supports are meant to get allies fed, while carries are meant to get themselves fed. you can do the same thing with a lot of junglers, like 
people like that.
What everyone has posted is really good advice. There's some general tips on this thread from others and myself in this thread as well: http://community.na.leagueoflegends.com/c/miscellaneous/RhNv7uqz-how-can-i-be-a-better-shot-caller-understand-scenarios-better
That aside, look to learn champs that inexperienced players wouldn't normally know how to deal with. 
, and maybe 
are my personal recommendations.
I tend to have some free time between classes and when I work the lab, and don't mind helping you practice in norms.
tried since season 2 its like impossible. Always matched up with horrible player who don't know what there doing, a feeder as you mentioned who feeds enemies till their full or a troll so I gave up I've realized that if riot doesn't want to give you a clean slate every season rather than putting based off of your mmr from last season it just meant to me that they want me to stay in bronze forever which is also a reason I may quit this game. Don't get me wrong I understand you for I too am a highly competitive player but the people in bronze are just straight up bad. So I recommend you find yourself a duo partner who is a good junger or adc who can basically solo carry
