Try to stay as long in the jungle as possible.. until you have like 1,1k money .. if you make it up to this level of money go back to base and try to buy Blade and Ap book... dont do unessesery ganks! You will quickly deal massive damage and in teamfights you dotn need to pick up kills.. your itembuild is cheap and fast to get! Try to focus the carrys.. if you hit a q on a adc or a midlaner follow up with your e and try to keep your w on whenever its usefull!
Dont use your ult on under 3 targets! unless they are the carrys! gl hf and pls rate :)