Returning player looking for some advice.

[Alphras]

Your gear is pretty much outdated, but with the removed cap on myth stones you should get to ilvl 90 pretty fast. You should also start capping you soldiery stones and running Syrcus Tower for some ilvl 100 gear.

If you want to, you can also start hunting, which will cap your soldiery on the fly and give you an insane amount of myth stones (and you can upgrade your soldiery gear to ilvl 110 as soon as you get it).

For tanking endgame dungeons, as in raid content? You should target ilvl 95 to 100 before you attempt starting with the Second Coil of Bahamut. You can go into the First Coil of Bahamut as soon as you have the required ilvl (but there is not really a point).