Heyo Zeronics,
are you trying to do damage by using techs in multi-mode? Forces don't work like that on Ultimate. You will never really be a "tech-casting mage" in PSO when playing in a party. Tech damage is, in general, pretty bad, even with the "best mage" FOnewm, and you will only hurt your party by tech-spamming since techs cause tons of "damage cancel". One notable exception is Gifoie and maybe Episode 4. In Solo-Mode, techs boom everything away, though.
All Forces have to melee on Ultimate, both with "Demons" (cuts enemy HP to 1/4) and raw damage. FOmarl and FOmar excel at the "damage" part - the former with her fantastic equipment (Tyrell's Parasol, Rambling May) and the best Slicer Animation (Slicer of Fanatic and Diska of Braveman are extremely good on her) and the latter with his stellar ATP (1,002) for a Force.
If you want to remake to FOnewm expecting to be a "caster mage" - don't. As I said, it doesn't really work. Also, I think FOmarl is a fantastic Force to start out with. Her great support is appreciated in (almost) any party. I have to admit, though, that Forces take a while to get "good". I'd say they start do be able to do stuff at around level 120 to 130. So be patient and rock on! :3 Another thing to note: I used several mags on my way up the levels. Once I was able to hit 900 MST (the most important threshold since it allows you to equip Glide Divine) with a mixed Pow / MST mag, I started to use that instead of a pure ATP/DEX mag, for example. In general for a FOmarl, ATP / ATA > MST, though.
What is your current equipment? Here's the most "basic" stuff you' want on a FOmarl at early stages and pretty much all of it is pretty cheap:
Glide Divine
Slicer of Fanatic (0'd is fine for a start since you can Special-Normal glitch the blade) (Do you know about "attack glitching"?)
Vivienne (preferebly with hit, 0'd can work well enough)
50 hit Charge Vulcan (works fine on fozen enemies, bullets can be glitched)
Tyrell's Parasol (for support)
Diska of Braveman (25 hit available from HU Government quests) + Thirteen
(DoB might sound confusing at first, but with Thirteen you will be able to dish out some good damage, even on a FOmarl. Don't go for the basic "DFP / EVP" armors when you have this amazing thing!)
Gifoie Merge
For your shield, use Gifoie Merge, Three Seals (fantastic resists and super easy to get) or even just a Regen Gear B. P. until 180 - there, you'd want a Red Ring, but those are expensive. Safety Heart would also be good until 180, but that thing is also pretty expensive.
As for units, SMARTLINK is an abslolute must-have. It makes your ranged attacks way more accurate and is super cheap. When starting out, Heavenly/Battle or even God/Battle is fine; the latter usually you can grab somewhere for free. Later you'll want a V101. Then, you'll also want a V801 and a V502, but the latter is pretty expensive. V502 is used for killing stuffin Episode 2 with a Hell weapon (50h Hell Raygun from "Restless Lion", for example, or an S-Rank J-Cutter - see below).
Once you're a little richer, you can think about getting the following:
Guardiana with hit
Magical Piece (might be an event item in the future again, that's where I grabbed mine - the item to make this costs 50 PDs at Paganini, so maybe wait and substitute with a Fire Scepter: Agni (for Gifoie) or an Sorcerer's Cane in the meantime)
Exalibur
Higher Hit DoB, Vivienne, Tyrell's (expensive)
S-Rank J-Cutter w/Hell (If you only ever get one S-Rank for your FOmarl, it's this one! Expensive, though)
S-rank Cards w/Demons (J-Cutter is way more important, though)
There's a few more nice items (Bringer's Rifle with 50 Hit, for example), but the most important stuff should be listed above. I hope I didn't forget anything...
If you have any more questions, just ask. FOmarl love! ;3