>>723066349
Confuicus say corpse on ground do no dps. Max out Maiven's Sphere, max out the +health on Word of Renewal in Inquisitor and always get the mirror skill in Arcanist, it's a godly survival tool. Inquisitor's Seal will also help you stand your ground and channel since it completely nullifies most DoTs and blunts enemy hits a bit while you're standing in it.
Max out your main skill and its modifiers so you do more damage. Mental Alacrity passive in Arcanist will help a lot with managing your mana since you're using a channelled spell.
I'd start with pumping your defensive options before getting more damage, personally. Looks like you're building pretty well thus far though