More life on my build obviously needed but what is the best way?

Returning exiler here

I used the Etheral knife build from poebuild.net. Works ok for groups but I am having great problems with bosses and stronger foes. (instant death).
Total Res is now ok, i think i am short of evasion and life, correct?

Now comes the question:
* How can i achieve that in a cost eficient way? and in what priority?

btw I choosed the amulet to have enough str and int for this build and I don't have to worry or hussle about these stats when choosing other gear.


Should I pick new gear (gloves for sure) or upgrade/enhance/whatever existing gear or maybe use an essence on a new normal item? (I am on a budget, no 2 ex. gear for me)

My own thoughts:
- other pair of gloves for sure
- maybe using less unique gear (ieg: switch the dagger)
-


* As for the skill tree; where should i put my points in? (I followed the build as far as it goes on poebuild.net)

First off, just don't use builds from that guy. He promotes RMT and just steals builds from other people and then makes videos and puts them on his youtube/website. Just don't support it at all.

Secondly, you just need more life on your items. You have no life on boots/helm/shield/chest piece or one ring. You only have like 130 total life on gear...very low.

As for your boss DPS, you need to get a 5/6L and even then EK is not a boss killer so it'll be ok for map bosses but will not do too hot on guardians etc.