Instead of posting a new topic every time I have another question, I'll just keep asking here. I hope no one minds.
I'm quite befuddled at the moment with how training works in regards to PPs and stats vs. skills. I have a seemingly large amount of PPs lying around and I'd like to train up some of my skills. However, whenever I try and spend some it tells me I cannot train that skill anymore. It doesn't matter what skill I try and train.
I get further with trying to spend PPs on stats, but it tells me I need to be "training" to increase the skill...

So, my question is: How exactly do you train skills other than an endless grind? I've been doing quests and fighting baddies that I can actually handle (rats and the occasional rogue

) and I think I've leveled my DW up twice in three days. That's a pretty hefty grind.
Also, how does one increase stats? Can I fight a rat with my charaisma? Is my willpower something I can throw like a rock?

Am I missing something fundamental? Or do I just need to buckle down and grind for the next few weeks to get my skills up so I can advance my quest line?
Thanks!
-Q