First off, that is a poor mentality for going into top lane. It lacks any sort of aggression and is also selfish. It's basically saying: my team will carry me if I don't screw up. Most everybody had the same thought process that you do at some point, so no need to feel bad or anything. But here's the case: if you don't die and have 300 cs at 25 minutes, are you guaranteed a win? No. Actually, you might even have less of a chance of winning, or already lost. If you have that much farm in a solo que game, then your team is fighting a 4v5 game most likely. Unless, of course, you have a team comp that can handle clearing waves, defending sieges, and avoiding picks(and your teammates play accordingly). Also, if you're afraid of dying and you're playing the TANK on your team--the meat shield who takes the damage for your carries, then you're playing wrong. You're saying you play Sion, who has a passive that only activates upon dying that deals tons of damage, and you're afraid of using it? This mentality will get you stuck in some sort of "elo hell" that you may or may not think exists. In reality, you are afraid to make mistakes because your teammates will Q_Q at you. What you need to do is practice being aggressive, you need to make calls for your team, right or wrong, admit and learn from your mistakes. DO NOT be afraid to make mistakes. If you make mistakes, don't blame your team, blame yourself. Your ego should be non-existent. Watch pro players and streamers, mimic what they do. Analyze your games, see what you could have done better or think you could have done better, and try it out next time you're in a similar situation. Experiment with runes! Go in custom games and try level 1 strategies like farming a camp--even Vladimir, who has a very weak lvl 1 can farm a camp. These are things that I did that got me from gold 3 to diamond in less than 200 games earlier in the season.
Next, to answer your questions:
1
-Pick the easiest possible champions for top lane. Pick brain-dead, no-mechanics champions. Have you ever played a champion and gotten flamed in all chat after playing it because it requires no skill? PLAY THAT CHAMPION. Have you tried Vladimir? Nasus? Rammus? Granted, Nasus does have a skill-shot in his kit, but it is LITERALLY A BATTLEFIELD. Quite hard to miss. The champion that would be easiest for you to pick up is Nasus. Want to farm all day? Stay top not die? Boom. Nasus. But I would recommend you pick one champ and spam it in solo-que. One trick ponies are flooding Challenger in NA, and for good reasons. It is the quickest, most efficient way to climb. You will be so good at that one champion, that you will crush your lane opponents and CONSISTENTLY carry games with that champion. Pick 1 back up champion that can play against your main champion. Pick up support(since nobody wants support in solo-que), if you suck at supporting then pick Leona and go aggressive. Learn from your mistakes and get better. Get stuck mid lane? Jungle? Play your top champions at Jungle, mid, even support.
2
-I hope this is a joke because I'm not answering this.
3
-All you need to know about trinkets: blue trinket=adc only, change on 2nd base. Sweeper: support gets every game as soon as sightstone completed. Invisible top/mid/ad/jg on enemy team? Then anyone is game to upgrade sweeper(adc would upgrade it if you want to 1v1 Vayne, Akali, etc). It's situational for top/mid. Jungle usually gets sweeper after first/second back, or upgrade yellow, depending on how their playstyle. Yellow trinket upgrade with the 2 green wards is your priority top lane. You are on an island. This yellow trinket is your lighthouse. Upgrade it whenever you start split pushing or around 25-30 minutes when baron & dragon come into play and you need to help your TEAM(notice I didn't say support) with vision.
-Don't know when to get wards? Just buy a ward every time you base. This will get easier when you farm better. Losing lane? Buy green ward. Winning lane? Buy pink ward.
-Place your trinket from 2:30 to 2:45 to spot a jungle gank.
-Get 20 rune pages
-Get a full armor rune page(4/26/0, 0/30/0, or 0/27/3 masteries) & play rammus top. Rush homeguard ninja tabi, and then thornmail. Enjoy.
-Watch pro players stream
-If you want to get gud, spend all your league time towards improving, rather than playing aram
-Struggling in ranked? Go play normals. Try hard. Winning normal games increases your normal game mmr(seperate from ranked). Play 100 normal games before touching ranked again. Rinse, wash, repeat.
-On tilt? Stop playing league after the match you're in ends. Don't play for the rest of the day. It's a GAME designed for you to have FUN. If you aren't having FUN, why are you playing it?
-Teammates feeding? Who cares? Not you. Care about your individual performance, but don't judge your performance with any bias. Don't be a selfish player. Deny every /ff20. How else are you going to get better at late game?
-Complement teammates for doing good.
-When picking champion pool--pick champs you enjoy playing. Not the latest champion that Faker played.
-Know the meta, don't be the meta. Main champion got nerfed? Stick with them. Losing lots of elo after nerf to main champion? Stick with them. You will gain it back. When everyone else quits playing your champion, then they won't be familiar with playing against it, while you know how to make the best use of their strengths and avoid their weaknesses.
*Remember:
Champion stats reset after every game. Champion knowledge and skill doesn't. Pick a champion and stick to your guns.
is amazing. If you run tp on him you counter splitpush comps and you can splitpush like a monster. His sustain is ridic, his build path is flexible. He's a duelist and can hold his own and even beat champs like
. His ult allows you to constantly be csing and to gank bot without sacrificing tower. His early and late game are pretty monstrous.
and/or
.