Help optimize please!

Hey All

This is my first semi-successful build but I need some advice on progression and perhaps an easier time getting to the end-game content.

POB:
https://pobb.in/pwJUX-wya5o9
** Edited to remove the one I completely wrecked!

Notes on the build:

I wanted to play a full-blown elementalist and found https://maxroll.gg/@aer_0 guide on Maxroll - kudo's bro it was a great starter and I could probably continue with it, but I wanted my own spin on things to better suit my own playstyle.

So, more regrets and gold than I care to account for, I reshuffled things around and stared at various options on POB to optimize in areas where I felt I was lacking.

I swapped Evasion for Armour, mainly because I do not yet know the boss mechanics and need a little more reaction time so I concluded it is easier to get damage reduction as opposed to 100% avoid.

Also messed around with the Ascendancies to get better survivability.

Battled capping Spellblock, because of currency starvation (probably because of all the rerolls, respecs, regems and regrets...) - could probably do a lot here to improve.

I would like to hit the 3.28 revisiting this build if I can get it solidly end-game viable.

I suspect I should concentrate on Crit Rate more than anything else right now.
movement speed is terrible, but hey we cant have everything all the time, I compensate with shield charge.
If I could get more consistent procs on Trinity that would also be a great booster, I suspect my lightning damage component is too far behind cold and fire.

Have not yet reached lvl100 and probably wont before the end of the keepers league, but it should be possible with this build and some careful play.

Please keep limited currency in-mind, I can comfortably run Maps to T16 as things stand right now.