Help with ED/contagion build

hi, i suck at building, the only thing i know is to farm currency. i started delirium with a ball lightning miner, it wasnt good so i rerolled to ed/contagion, its much better im at red maps now, my question is how do i get more damage/more evasion. i copied my build from looking at different builds in poe ninja. my pob link https://pastebin.com/VB6ib6PY. i have 8 ex to invest atm.