Some Confusion/Need Some Direction

[PetiteMalFleur]

Don't forget, after you get the first job to lvl 50, all other jobs get a 50% exp boost.

Actually you get a 50% exp bonus to any DoW/DoM that is lower than your highest level class. Doesn't have to be 50.

Just do a low level roulette everyday after you get to lvl 16. It doesn't take long doing that to level.

[Sanguisio]

Levelling ACN is a walk in the park, at least it was for me.
You need to abuse the fact you have a personal tank; Carby. Get hunting logs done, and fates. Shouldnt take long.

[lxSch]

Ok,

I have a level 34 conj which I have been playing with a friend mostly. We discussed a lot about what type of char I wanted to play and all that but just recently I got to the point where I got the stone skin spell which is I guess a major one healers needs? Now, I am back to level 8 with arcanist to to eventually play the scholar.

I really hate to have to go through these levels again. Are there any other options I have? Could I continue with conj and play WHM or whatever the other options are? Obviously, I want to be an effective healer at the end game raiding level but going from 1-34 and immediately turning around to do it again can be a bit rough.

Daily low level roulette and guildhest roulette are two biggest sources of exp. I suggest to do them on ACN as it counts for dps role and has much longer queue time.
If you are going to stick with arcanist - getting lv26 THM for swiftcast is a must because dead fairy may cause a wipe. CNJ lv34 for ACN is quite useless: x-classed stoneskin is only 10% instead of 18%, so pretty much every time it will be cast by WHM, not SCH.
For WHM getting THM lv26 is optional - swiftcast is required to revive a bad dps, who likely will die again to the same mistake and only waste your mana and time, but surecast (lv8) is quite useful for casting medica 2. ACN lv34 is important for WHM for Eye for an Eye skill - reduces the damage tanker takes by 10% for 30s, which helps a lot in threat and mana management.
WHM is more viable as main healer and solo healer, SCH is more viable as tanker healer and bad players healer (better mana pool and quicker heals).