Well, you're about to hit the mid-level dungeons, so things should become a little easier for you soon, a lot more people are willing to run Brayflox, Qarn, and StoneVigil, than the lowbie dungeons.
As for Fates, you should be running Fates in Quarrymill right now. Try to join a Fate party, as it'll be a lot easier to score Gold, when everyone is racking up a score. Your job during most Fates, is going to be to pull aggro on as many enemies as possible. So basically, run in and spam Flash, Overpower, or some combination thereof.
Only playing for an hour once or twice a week, unfortunately isn't going to be the most effective way to play. If you're playing for 1.5 to 2 hours however, you should be able to go up a level or two each play session. This should especially be true once 2.1 hits, and Dungeuns/Leves get the XP Buff.
Also, 2.1 is going to introduce something called, "Daily Roulette," which is basically going to reward endgame players for agreeing to take on a random dungeon. I suspect it isn't so much random, as much as they're, just going to use it till fill up empty slots in non-endgame dungeons. So that should further reduce dungeon wait times soon.