486
Your vision score is 0.49 per minute; Emerald players average 1.00. Buy a control ward on every recall (75 gold is the cheapest insurance in the game), use your trinket off cooldown and sweep the river before objectives.
You take part in 35% of your team's kills; Emerald players average 56%. After your first item, look to rotate for dragon, grubs and herald, and keep Teleport for fights rather than for farming.
Your main role is only 45% of your games. Each role has different macro; playing one primary and one secondary role gets you a lot more repetitions of the same decisions.
