Lower Concentrate to 1 point
Put at least 1 point into Prayer and and 1 point into Life Extension (if you dont mind having lots of reagents) for Fake Res
JoG is fine at level 4 which is when it gets a power boost.
Take out Sleep completely
Full Moon Bullet is a bit useless since you cant really control which direction it will go, I think its more for PvP healers than Full Support so take that out too.
I personally like to have a decent amount of mana so I would keep max Mana Increase.
I'm not so sure about Mana Recovery, I guess you can keep it at 6 if you're struggling to keep up your mana, but I would lower it to 1 point since mana shouldn't be much of a problem once you have maxed PoS. There are also equips etc. which help.
I think Increase Health has become kind of useless in the eyes of Myth grinders, but you can keep it maxed if needed for other stages. Otherwise, 1 point wouldn't hurt for an extra 100 HP.
I would max tears aswell so that you have at least one strong attacking skill. (I think you're already doing that anyways xD)
This is basically your build with the changes (Excluding the Mana Recovery matter :P)
Lunia Skill Simulator
When you rebirth, the only thing I would do is replace Beads with Rebirth Beads and possibly put a point into Rebirth Pieces. GL!