You just need do farm until you've got your complete jungler item, your wit's end and your greaves, until you reach the gold you need for that items try to not fight in early especially burst champ like kha'zix or rengar, shaco; you can try to fight jungler like rek'sai, or jungler tanks like maokai, skarner, nasus or sejuani; try to gank just when you're sure that can get an advantage, don't try risky ganks, cause you haven't got CC so gank only lanes that have CC (or last hit the kills of your laners, it's also a good idea), also play attention to enemy team's CCs; Another tip is: NEVER,NEVER AND NEVER ENAGE WITH Q, cause your Q is a good ability to dodge Hard CCs and executes like Urgot R, Pyke R , Darius R or Veigar R.