That was what happened to me too when I first played it on the PS3. I didn't fully understand the vocation mechanic, I guess I didn't realize the effectiveness of using certain magics against enemies.
I've been playing as a Mystic Knight and blowing up everything with Great Canon and am having so much more fun than I had when I was younger.
I have been playing UnderMine. The game plays a lot like The Binding of Isaac, but has a few differences like the meta profession after every run where you can unlock new upgrades and you can rescue people inside the mine that are vendors and the like.
The game scratched an inch I had for a new roguelite since I haven't played one in awhile.