Is the priest a struggle?

Hey Guys,
after struggeling my warrior to 60 on the pvp realm and having no fun with it in the endgame I'd like to reroll at the PvE realm.
I thought about playing a healer because I don't like DPS and I don't want to play a warrior again.
So I wanted to roll a priest, but I have absolutely no Idea how it is to be a priest.
My question now is, is it a struggle to level up as priest?
What is about the endgame? Do I have a chance to kill mobs at my level easily even as a healer?
If it's too much struggle I think I gonna reroll another class.
after struggeling my warrior to 60 on the pvp realm and having no fun with it in the endgame I'd like to reroll at the PvE realm.
I thought about playing a healer because I don't like DPS and I don't want to play a warrior again.
So I wanted to roll a priest, but I have absolutely no Idea how it is to be a priest.
My question now is, is it a struggle to level up as priest?
What is about the endgame? Do I have a chance to kill mobs at my level easily even as a healer?
If it's too much struggle I think I gonna reroll another class.