New Player puzzled by Arcanist changes.

[Kayneth]

So yeah, i started playing FFXIV a few days ago after a some years of kind-of wanting to since i heard they'd finally be adding playable Vieras that i've always loved and maybe future FFT/FFTA-esque content. I'm being a cheapskate right now and playing on the Trial until i reach the level caps.

I started as Archer, then tried Conjurer; doing a few runs of Satasha as the Healer. Now i've chose to play Arcanist, but every guide i've encountered talks about it in terms of outdated mechanics that seem to have been patched out in 5.0.

Now i cant tank with the Blue or Yellow Carbuncle because Pets can't be targeted by enemies anymore (as per 5.0 patch notes) and the Arcanist is the squishiest of the classes i've tried so far, forcing me to spam Heals to save my skin and essentially squandering my Solo PvE DPM in the absence of any tank.

Is this the future of the solo Arcanist, or am i doing something very wrong in terms of basic approach?

[Tempus animae]

Early content is a bit...unbalanced for the arcanist(and its 2 Jobs)... The second Egi(Topaz/Titan) can cast a barrier that absorbs damage, but it is less good than a Tank...
The heal will be absolut useless later(It does not get stronger, like it does for a healer).

[Illyasviel09]

I belive yellow carbuncle now have shielding skills, so you can use those to increase your defense. Make sure also that you have the proper gear for your current level

Every single class/job in this game can do every single solo content available.