First the introduction,I am a WHM, currently progressing in coil, up to turn 5, my allagan gear consists of only the ring (damn you RNG), and my ilevel 90 equips are as below:
Cleric circlet
Cleric robes
Hero rings
(I like Spell Speed ;_; )

The rest are DL items.

Although I am able to clear up to turn 5, 1 thing I notice is, for every single turn, I will most likely go OOM if there's no mage's ballad. So my question to experienced coil healers is this:
Is this normal? Is there anyway for me to improve my mana management?

I'll list down where my mana goes completely bonkers for each turn as below:
Turn 1) 3 Stacks and above, I am pretty much Cure II ing 80% of the way.
Turn 2) ADS at 50% and below, same reason above
Turn 4) Double Dread, Cure II 100% ;_;

Any advice is highly appreciated!!