Best champions for every lane to carry out of bronze - a guide and a question.

I'm wondering what champions are the best for carrying low elo games. My current picks are pretty good some I love some are just ok so let me just go through my current champions in detail.

Adc - Twitch, I love this champion, he's funny, fun to play, and really lightens the mood. He's also amazing to trick low elo players with the invis thing. His slow makes bronzies run so you just stack the poison and E which does a ton of damage and you can usually dive a turret shot to get a easy kill. and with a frozen mallet (call me crazy for using this) is just fantastic for kiting and sustain. I really don't think I need to change my adc champ but good to ask for anyway!

Support - Blitzcrank or Thresh, This one is quite self explanatory, hooks no need for your adc to engage, knock ups, keeps the enemy away and adds to the hook. aoe ults I like the thresh ult butter because it slows and you really don't need more damage but both are great ults, I personally like the blitzcrank speed up against the lantern because THEY NO CLICKY ON LANTERNZ!!!! and I actually main support, so I rlly don't need help deciding on supports either!

Jungle - ?????? I really don't know what to pick for this role, I love jungle but I have no real champion that I've seen that are really just the most useful for low elo. I'm looking for once that can do huge amount of cc in team fights and can hold hands with ganks.

Mid - Zed, was the first 6300 champion I've ever gotten, so I'm experienced with him and to be honest, I usually win lane! The best way to play mid in bronze is to play it very passive poke type of way. I never go up to an creep and hit it, I use my q to cs and my shadow to run away from ganks, and whenever my foe comes near I simply through a q at him. He runs off I farm more, this also allows me to stay in lane longer so I can get more farm and be a beast in the mid or late game. Also, whenever someone goes ham on you just go ham back, most likely from the poke you gave him you will win the fight, and if your scared of ganks buy wards.... also you have your R to go back to if you're getting ganked. but, is there any champion that can do this with more of a team fight impact. I find myself just sitting at the back waiting for everyone else to go in then I just cleanup. and you never know how people are going to engage in bronze!

Top - ??????? I literally have no champions that I have a good win rate, I lose more than I win at top because I really don't know what to pick top, I have loads of champions that can top, but I don't really have any champion for top that I'm good at I can carry like 9/3 as Fiora but she doesn't really have a great impact in team fights. The rest of my champs I just am not really good at and I don't know really what champion to practice with because I have no clue if they will be helpful in team fights!

I've practiced warding and all of that and, in my opinion I'm okay at warding and csing and all that fun stuff. However, I have no clue how to tackle something, how to deal with people on tilt, or uncooperative, I just find it frustrating to have a person who mutes me for asking him to come team fight or ping him to back up. and just rage in general, I try calming them down. The just get even worse. Just what do you exactly do to deal with these people?

Thank you for reading my very long thread, and I hope this can help while I get helped myself!