Yeah Im a bronze player wanting to get better XD. Im curious why does riot always place me with people in higher ranks. I just got B3 and five games ago I was bronze 4. However, I always go against Bronze 2- Silver5. If you look at my match history you'll see. The majority of the people I go against should be in Bronze 4-Bronze 2 right?
If you're winning against higher level players you'll keep being placed against them. Your MMR (your real account rating in case you weren't aware) is different from your current rank. Means the system thinks you're at their level.
It's a good thing - if you're playing and winning against higher level people you'll climb quickly.
Lower your champ pool.
My friend was stuck silver 5 because he was too stubborn to follow that simple advice, but since he did he's been climbing a lot faster.
If you take like 2 champs in 2 different roles that you're really good at and just practice them, you will climb faster.
If you want to escape bronze dont play 
ps. (2/9/7) [sg-jinx]
I'd agree that playing less Yasuo is good. I find that sometimes I used to tilt my team mates just by locking him in, so I guess it's just the psychological effect. Another thing is to find a good duo partner who is untiltable (One of my old duos got perma banned :C) and who can play a role that can frequently help you out (JG and supp)
You might get better responses to your post if you post in gameplay, since you're asking about in-game tips to improve: https://boards.na.leagueoflegends.com/en/c/gameplay-balance
