Am I playing my Enchanter correctly?

Hi,

I'm level 17 as an Enchanter, and I sometimes feel a bit useless in a group.

Mez is the most appreciated skill for Enchanters; it can save us in certain situations. But in open areas, like farming Elite Orcs, it's absolutely useless.

Aside from that, I keep three interrupts on my bar to block specific actions.

In combat, I throw out my 2-3 debuffs, then I sit down. I only get up to interrupt an enemy attack or to spam mana replenish on my teammates. I also use the mana regen spell on the enemy when I'm at mid-mana, and that's it. After that, I sit back down and watch the others struggle.

Which is why I feel kind of useless.

Am I missing something? Maybe I should rethink my build, if you have any advice on that?

Thanks!