Even though Hessah's guide is really good, it's kinda useless if you're 58 and have done all available quests as the point of the guide is really to do as many repeatables and save the quests for lvls that don't have such a quest.
I would recommend (sp?) using
this guide by Spirit to lvl from 60 to 69 if you have gotten to 60.
As for your situation now. Just keep going, you'll get there. If someone keeps PKing you, just leave and go somewhere else for a bit. Check back later to see if you can grind in the abyss then.