Okay, I'm at level 12 currently ( a thief) and it's more frustrating than ever right now. I get only 12 - 25 exp from each kill, and I feel LUCKY if I get over 30.

Right now I'm killing Goblin weavers and thugs, wild sheeps, mouse bats and all those things that are near San D'orian ( like that King's tomb). I haven't went too far yet, though; farthest I've gone so far is that King's tomb's vault 2 where I first encountered wind bats, and even they kicked my ass easily when I tried them.

So, can you think of any monsters near San D'orian ( since I can't go to other cities yet, I guess) which I possible haven't encountered yet and which might be possible for me to kill? It'd be great if I could get something like 50exp/kill again. :\
It's VERY frustrating to spend time with somewhat durable sheeps, which only gives you 15exp.