Bronze is a lot of split pushing. You need to get very good at last hitting minions for money and also map awareness. You need to be able to know when its safe to push, and when you need to defend. Defence should be priority over attacking.
If your pushing a lane and your beyond river, with no wards down, your doing the wrong thing.
If your pushing and are beyond the river and any of the other two lanes have enemies on your side of the river your doing the wrong thing.
You never want any enemies on your side of the river. That should be your focus in bronze.
If any of your lanes are losing, go help them, They will lovou forever if you step into their lane and weaken the minons so they can collect the money and catch up. When you have a player struggling, do this. Get them fed. You can do this three ways
- Gank the enemy champion and lay off the kill for them
- Step into their lane and weaken the minions and let them collect so they can buy the item that may give them an edge.
- Take objectives. by providing your team with global gold helps everybody
You need to get out of the mentality that it is anyone on your teams fault but your own that your losing. because if doing those three things i mentioned. Your team as a whole will be stronger because of YOUR actions.
Hope this helped.