I'm newly returning, mainly do PvP, and decided to roll an OP healer to complement my Fury Mara. I'm just hitting level 42 and thus far I'm finding it underwhelming. It doesn't seem like my heals do very much, I can't seem to match HPS to a single DPS, and I feel very squishy.

Does this get better in the higher bracket? Is the class itself viable for 75 or ranked? Any tips would be appreciated.

As a side note it's also quite the thankless role. Nobody peels or guards, nobody tosses MVPs, and once the enemy team realizes I'm not concealment it's dogpile after dogpile.