ES FB Sorc Help, Please

[Huplet]

My level 83 sorc, as it is right now, is as follows:

Gear:

Shako, Maras, Hoto, CoH, Spirit, Magefist, 2x SoJ, Arach, Treks.

Skills:

20 FB
20 Fire Bolt
6 Meteor
1 Fire Mastery
1 Frozen Armor
9 ES
20 TK
1 in each prereq.

Where do I go next? I do only 6k FB damage (One GC at the moment), and still need my ES Staff. Is 18k FB damage possible for me?

Do I put points into Meteor or FM? Which merc do I get? Should I make some gear changes?

I would appreciate any help, thanks.

ALSO: Can Memory be made NL?

[DH Amazon]

Is 18k FB damage possible for me?

With your current skill point distribution you get 18k FB at lvl93 if you have lvl 52 FB, so not likely. Too much for shield and telekinesis for that high damage.

Use skill calculator to decide if mastery or synergy is better. It all depends how much +skills you have. And use same calculator to check how high FB damage
you can get.

Nice items, so only charms can get you more damage.