Advice for my noob Split Shot + Piercing Shots + Fork build?

My current level 24 passives :


Like the title says, I have split shot, piercing shots, and fork as my main damage source. This combination combination pretty much just demolishes entire waves of enemies, so on the dps front, I think I should be okay.

However, as you are probably shaking your head over, this build is extremely glass-cannon-ey, as I literally have no health and mana nodes, which I will be improving upon the up coming levels.

The mana is especially a problem, as while I can clear waves quickly, I pretty much have to stick tight to my flask after only about 8 casts of split shot, which results in a whole lotta kiting.
So other than getting health and mana, I need some advice:

Should I go for crit? Evasion? Seek a blood magic gem? What other major keystones should I get?

Any help is greatly appreciated!

Where I'm hoping to be around the level 50 mark-ish:

if you take all of the nodes in the bottom left past Mana Flows snd put it in the top right for Acrobatics and Phase Acrobatics, it will make you much more tanky rather than a bit more evasion and dexterity. 30% dodge chance + 20% magic dodge chance is no joke

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BaconGobbler wrote:

if you take all of the nodes in the bottom left past Mana Flows snd put it in the top right for Acrobatics and Phase Acrobatics, it will make you much more tanky rather than a bit more evasion and dexterity. 30% dodge chance + 20% magic dodge chance is no joke

Actually its the biggest joke in the game currently.