Check the hate list, if you're high on it you're doing good enough DPS. I learned this after 2 days DPS'ing. I'm a White Mage and I figured this out, I don't need parsers.

As iLv.111 DRG I'm often 2 or 3 on the hate list in WoD. Just seeing that is enough to see my rotations are fair and playing a part towards victory. I don't need Obama in my ear.