Honestly, bronze is so fucking easy now. Just survive level 2 and PRACTICE LAST HITS and you should win every game. As long as there is no early game tilt you should win lane every game. If they kill you, there should be a 50 cs lead in place to make up for it. Also if you jungle practice your jungle pathing and optimizing damage. I played a game of jungle nunu and I was like 20 cs ahead of an udyr by 11 minutes because I farmed lane if the wave was pushed to tower and my laner backed, or I pathed so well that I could afford to steal a few of udyr's camps here and there. Invading in bronze is easy, ward behind you and make sure you have an escape route, if too many people are missing don't bother. Remember, taking a raptor camp creates an 8cs difference. You have 4 more than before and they have 4 less.