Lets be honest, you are not stuck in bronze, you are bronze.
< Pick supports that are not team reliant. I was 600 elo at one point in my league career and you are nearing that as well. I would advise that you just pick annie every single game and learn the game through that method. That is what LS the Korean coach advises.
< You play too many champions that posess to many varied roles. Pick several champions with simple mechanics to learn the game. You have 1800+ games played. It took me 6000+ normal games and idk how many ranked games to learn how to play the game somewhat properly. I stuck with just 
and 
(before the rework) since they had one dimensional mechanics and a straightforward build path. You should be playing supports like 
and 
because if all else fails you can build ap and deal damage if you are playing with other bronze players.
<Do not pay for account boosts. It's a waste of your money and you are not learning how to play the game properly if someone else has already done that work for you. On top of that, even if you think you deserve that rank you didn't put in the blood, sweat, and tears to get there. You not playing on your "main account" in the last two month tells me that you are avoiding playing with people of that skill. IF you were a gold 5 player you would have a 50% winrate on that account, however it is 38%. Given the small # of games played it tells me that with a larger number of games played you'd be at about the same rank as this "alternate account" in about a month given the volume of games played on it. I just want to give an analogy for the sake of what boosting equates to.
Imagine for a moment you are in a recreational basketball league. You play hard all year long and you and your teams can't make it out of the rec league. A semi-pro says hey "Lemme get you into the NBA by using your name and pay me for getting you there." You go along with it and let him do that. You end up getting to the Summer league and tell him "Alright, I think I can take these guys now." You enter the game on a team of these pro's attempting to enter the NBA and are against another team of pros. What happens is the pace of the game outweighs the skills of the player. You try your best to keep up with these guys but they're dunking and scoring three pointers all over the place. The whole while your team just wants you to pull some of the weight. You might know the general concepts of playing the game but all of the athletics going on around you is too much to handle. You may even understand how the Ally oop play works but you have not perfected the "mechanics" to pull off such a play at this level.
Just saying you have a 48% winrate in bronze. If you stick to the advice I have given to you you will be able to climb at least to silver. I got to silver only doing support and sometimes something else. Nobody knows how to ward in that elo, long as you know the proper ward locations to use you will be alright. Remember to ping and not spend the game typing essays to teammates or enemies. I will provide several links for educational purposes that will help with basic mechanics the rest is up to you. I also will add a few links to recreational basketball vs summer league.
LS < https://www.youtube.com/watch?v=9z2A7IDm_uw
My OP gg < http://na.op.gg/summoner/userName=Evangel
Warding as support < https://www.youtube.com/watch?v=TBt_sWWyhDc
Rec league YMCA from like 4 years ago, it's a few highlights but gets the point across <https://www.youtube.com/watch?v=2Isu9Y4tAng
NBA highlights <https://www.youtube.com/watch?v=CHveZ4l4VaU
Any editing mistakes let me know. This is my first post back in about 7 years. Format may be wrong used to the chans. <3 Goodcluck*[slayer-pantheon-thumbs]*
Edit: Just noticed you make this post about every 15 days. Take the advice already and either actually listen to it or just play for fun :)
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