Start red if on blue side of the map, blue if on purple side of the map. Having your bot leash allows you to take less damage from the camp because it dies faster. Try for a gank on top lane if you can do so safely. Don't gank if you are lower than 3/4 health. Try to power farm till level 6. While your ganks are strong early game, they get a lot stronger once you have ult. If a lane is getting pushed on insanely hard, those will be easy ganks.

After laneing phase, controling Dragon is important as it now scales with the game. The longer the game has been going, the more it's worth. Baron is also a high priority. In team fight's you will either be an assassin or an initiator. Either one you are, your target remains the same. Ult the Adc, get them out of the fight. Even if you don't kill them, making them back off is just as good.

You will want to start telling your team to group. Your ult makes you a deadly force. Having allies nearby to follow up make you even scarier. No one wants some chick with huge fists flying at them with angry friends behind them. Teams will either fight you, or back off and let you take a turret.

IF YOU ARE LOSING BUILD TANK! DON'T BUY DAMAGE, RELY ON YOUR TEAM TO DO THE DAMAGE. YOU JUST PEEL FOR THEM.