I was originally SMN in 2.0, then i switched to Scholar right away. I had to get my conjurer up to 34 or something to get stoneskin. I hated healing as WHM in low dungeons, as typical "holy priest".
SCH imo just has more to offer and is wayyyy more interesting to play with. The fun things you can do(which are nearly impossible on ps4 with controller), like healing two prefered targets at the same time with fairy, or pushing some massive burst heal on a tank with crit adlo, lustrate and fairy on top. Also situations where you do a mistake and you're silenced or paralyzed, but fairy not and saves someone from death.

I dont think there is a lot to handle with SCH or any other class. If you play on ps4 controller it can be a bit difficult with macro's or managing your fairy's abilities, because your skill bars will be a bit filled with their skills.

What you probably need is a bit experience, encountering various situations where you use various kind of skills you have, then you will get a grip on what where to do and will be better