Everything is ok

Me in every MMORPG
Everyone is barely able to kill one monster by themselves so then they rush in to the final boss and block me out then completely get wrecked and blame it on my healer skills

Ah! She's from Cinderella Girls! How funny!

Are you protecting the healer? Or does your defense suck and they keep getting ganked?

If you can't hold the line and defend them, quit your bitching.