Suggestions For Improvement

So, I'm not level 30 yet or anything, but I wanted to prepare for ranked games. I heard many stories about Bronze, and the common stories I hear are that it's gonna be hard to carry out because there are trolls and feeders on your team. I feel like the game I just played somehow feels like a Bronze ranked game, so I want to prepare beforehand. The recently game I played involved a Nasus on my team feeding Lee Sin pretty hard, and a bot lane duo who fed the enemy bot laners. Unforunately, the Kindred on my team was behind in jungle. Later, the enemy jungle Yi got so many ganks and got fed. Unfortunately, I could not dominate my lane because I had a disadvantage against an Azir as Talon. I cannot say that it is not my fault, and I know I have yet to learn so many things. I know one mistake I committed was roaming to bot lane for a long time after forcing the enemy mid laner go back to base. After I helped out bot lane, my mid tower ended up getting destroyed. But, I did my best to assassinate who I could, and got many double and triple kills. Unfortunately, Lee Sin was able to dominate me in many fights because of how badly Nasus lost his lane. Some possible alternatives I could have done was to dominate mid lane much better, but I am not sure how I could have done so since Azir has an advantage over Talon. So, looking back at my last game during my match history, are there any feedback tips you could give me? Thank you so much!