No Such Thing as Elo Hell (tips to ranking up fast)
If you are stuck in bronze, and you say it's not you, it's 99% of the time you that needs to improve. I was once in bronze too and I will say it: I used to be stuck in bronze because I sucked.
I will give you some tips to leave 'elo hell' although such thing does not exist. The tips I am about to give you are simple and easy to apply.
Map awareness
Map awareness is probably the most underrated skill in low elo. Due to a lack of it, you get caught out and you throw games, you miss easy kills and your teammates have to ping you 1000 times so you look at your minimap, and you also die often. Try to look at your minimap often and you might ask how often? My answer is if you realize you are not looking at the minimap, you aren't looking at it enough.
CS'ing
Probably the 2nd most underrated skill in league. Most bronze-low silver players do not know how important it is to CS well and keep up with the enemy laner in CS. When I was in Bronze, I used to say things like, 'kills>>>>>objectives', and now I think about it, I was very foolish and I didn't know any better. Practice your csing and just by csing you can sometimes carry games.
Warding
NO ONE and I mean literally NO ONE buys wards in low elo. I don't mean the free trinket that you just have to right click to purchase in the beginning of the game, but I mean the green wards, pinks, and 250g upgraded yellow trinket. Warding will help prevent ganks, make plays that are otherwise not possible due to a fear of getting ganked, and help your teammtes.
Mechanics
1v1 mechanics are very important in low elo, and I believe you can leave bronze just by having some mechanics. Practice 1v1'ing with your friends or just play ranked and try to better your mechanics.
Communication
Communicating during champ select and sometimes giving up your best lane to win the game is very important. Sometimes things like double adc's, duo mid lane happen due to a lack of communication.
Encouragement
DO NOT BE TOXIC PERIOD. If you are toxic to whoever is doing poorly and you do not encourage them, the chances are they will start doing worse. They might afk, rq, and even intentionally feed ALL because you could not shut up about their mistakes.
Be nice to people and have fun guys :D